一年级下册_整十数加减整十数练习题

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人教版一年级数学下册第4 单元《整十数加一位数及相应的减法》专项精选试卷 附答案

人教版一年级数学下册第4 单元《整十数加一位数及相应的减法》专项精选试卷 附答案

人教版一年级数学下册核心考点专项评价8. 整十数加一位数及相应的减法一、仔细推敲,选一选。

(每小题5 分,共15 分)1.一盒糖果有46 个,菲菲吃了6 个,还剩多少个?下面列式正确的是( )。

① 40+6 ② 40-6 ③ 46-6 ④ 46+62.下面与36-6 得数相同的算式是( )。

① 38-8 ② 36-30 ③ 30+6 ④ 46-63.一个数加上4 等于64,这个数是( )。

① 68 ② 60 ③ 74 ④ 50二、细心的你,算一算。

(共49 分)1.在里填上合适的数。

(每小题2 分,共12 分)78=+8 9+=49 -4=4060=69- 50+ =56 33=+32.在○里填上“>”“<”或“=”。

(每小题2 分,共8 分)30+8○8+30 89-9○58-87+80○8+70 45-5○54-43.我会算。

(每小题1 分,共12 分)4.小小投递员。

(连一连)(8 分)5.请你帮小房子找到合适的钥匙。

(圈一圈)(每小题3 分,共9 分)三、我会看图列式计算。

(第3 小题8 分,其余每小题4 分,共16 分)1. 2.□○□=□ (颗) □○□=□(个)3.□○□=□(根)□○□=□(根)四、聪明的你,答一答。

(共20 分)1.有30 本故事书。

(10 分)2.网上优秀作文大比拼。

小丽的作文得了多少个赞?(10 分)□○□=□(个)答案一、1.③ 2.① 3.②二、1.70 40 44 9 6 302.= > > <3.(列排)74 70 4 68 608 39 30 9 96 90 64.略5.60 70 85 5865 56三、1.30+5=35 2.20+8=283.40+7=47 或7+40=4747-7=40 或47-40=7四、1.20+9=29(本) 29<30口答:够。

2.40+6=46人教版一年级数学下册期末质量监测卷一、填一填。

人教版小学一年级下册《整十数加减整十数》

人教版小学一年级下册《整十数加减整十数》

帮 帮 小 猴
60 + 30= 90
70 – 30= 40
10 + 70= 80
80 – 50= 30 30 + 20= 50
第二关
3+2= 4+5= 30+20=
40+50=
60-40=
6-4=
观察上面两组算式,你能发现什么呢?
小动物后面都藏着什么数 ?
猜一猜
40 + 50 -
= 30 70 = 4010
(3)60里面有( 6
我发现
)个十;90里面有(
9
)个十。
10、20、( )、( )、( 30)、40、( 50 60 70 )、80、() 90
整十数都有哪些呢?
像10、20、30、40、50、60、
70、80、90这样的数叫整十数
图上的老师和同学 们正在做什么?
看图你能提出哪些 数学问题?

老师说
数学很美 需要我们仔细观察


用心思考 用嘴去说
得数是40的路才是回家的路
20+30 100-60 40-10
30-0
90-40 50-10
0+40
30+10 40+30
70-20
20+30
70-30
10+30 60-40
说一说,你是怎样计算的?
10+20= 30
摆小棒 数数 计数器 组成 1个十加2个十合起来是3个十也就是30 计算 1+2=3 10+20=30
10 , 20 , 30
30-20=
1、和你的桌互相说一说你的计算方法。 2、你认为哪一种计算方法最快。

一年级100以内整十数加减法计算题

一年级100以内整十数加减法计算题

一年级100以内整十数加减法计算题班级 姓名40 -10 =90 +10 =60 +10 =30 +10 = 80 -10 =20 +30 =90 -80 =60 +30 = 20 +30 =70 -30 =40 +10 =50 -30 = 90 -50 =10 -10 =20 -10 =90 +10 = 70 +20 =20 -10 =50 -10 =30 +60 = 60 +10 =90 +10 =60 -20 =20 +40 = 90 +10 =50 +40 =10 -10 =30 +50 = 10 +20 =30 -30 =10 +60 =40 +30 = 70 -50 =70 +10 =90 +10 =20 +30 = 70 +20 =90 +10 =60 -30 =70 -10 = 20 +50 =70 +30 =70 -70 =20 -10 = 40 -10 =10 -10 =80 +10 =60 +20 = 30 -10 =60 +30 =40 -10 =20 +70 = 90 +10 =70 -70 =30 +50 =20 +30 = 30 -10 =50 -50 =50 +40 =10 -10 = 70 -60 =60 +20 =50 -30 =50 +30 = 20 +30 =60 -40 =80 -80 =10 +60 = 50 -40 =40 +10 =60 +20 =70 +30 = 70 -30 =10 +20 =50 -30 =80 -60 = 10 +40 =80 -20 =30 -10 =20 -10 = 30 +30 =70 +30 =40 -20 =20 -20 = 60 -20 =70 +10 =90 +10 =10 +20 = 40 +40 =20 +10 =40 -20 =80 +20 = 40 -30 =40 +30 =10 -10 =10 -10 = 70 -70 =70 -10 =60 +30 =50 -50 =一年级100以内整十数加减法计算题班级 姓名70 +10 =20 +10 =30 +40 =30 +50 = 40 +10 =10 +50 =70 -60 =40 +20 = 40 +40 =90 +10 =70 +30 =40 -10 = 70 -40 =90 +10 =30 +10 =90 +10 = 50 +50 =60 +30 =90 -90 =60 -40 = 70 -40 =60 -60 =40 +50 =90 -30 = 20 +20 =20 -10 =80 -50 =70 -70 = 60 -30 =70 +20 =50 +20 =90 +10 = 90 +10 =20 -10 =40 +60 =50 -40 = 70 +30 =50 +20 =10 +70 =40 -30 = 90 -50 =90 -70 =70 +10 =10 -10 = 50 -10 =40 +20 =70 -40 =20 +50 = 70 -50 =20 +50 =50 +50 =20 +50 = 70 +10 =40 -40 =30 +30 =70 +30 = 50 +30 =40 -20 =50 +10 =20 +50 = 10 +80 =80 -60 =50 +40 =90 -80 = 80 +10 =80 +20 =50 +20 =40 +10 = 90 +10 =90 -50 =10 -10 =90 +10 = 80 +20 =30 +10 =80 +20 =10 +10 = 80 -10 =40 +20 =40 -40 =40 +60 = 80 +20 =90 -80 =70 +30 =30 +10 = 70 +20 =50 +20 =50 -10 =70 +30 = 90 -10 =90 +10 =60 +40 =40 +60 = 50 +10 =70 +10 =20 +30 =10 -10 = 50 -30 =20 +10 =50 +50 =30 -30 = 10 -10 =60 -60 =80 +20 =30 -30 =一年级100以内整十数加减法计算题班级 姓名60 -10 =40 +60 =90 -60 =30 -30 = 80 -70 =90 +10 =70 +10 =50 -50 = 90 +10 =60 +10 =50 +40 =60 -40 = 70 -20 =90 +10 =20 -10 =90 -90 = 60 -50 =80 +20 =40 +10 =20 +40 = 80 +20 =30 -20 =10 +90 =80 -70 = 10 +60 =60 -50 =10 +20 =40 -30 = 10 -10 =30 -10 =70 -70 =50 -40 = 10 +60 =60 -10 =50 -40 =30 +10 = 30 +40 =20 +30 =40 +50 =90 -50 = 80 +10 =20 +10 =40 -40 =90 +10 = 40 +30 =10 -10 =80 +20 =20 -10 = 60 +10 =40 -30 =40 -40 =40 +60 = 60 +30 =30 +10 =80 +20 =50 -10 = 10 +30 =50 +50 =40 -30 =70 +30 = 50 -20 =30 +30 =10 +50 =30 -10 = 50 +20 =90 +10 =60 -60 =10 -10 = 70 +10 =10 +10 =50 +10 =90 +10 = 20 -20 =40 -10 =50 -20 =60 +30 = 50 -30 =40 +50 =50 +50 =70 +20 = 40 +40 =30 -10 =60 +40 =80 -50 = 80 -60 =60 -50 =30 +60 =40 -40 = 30 +10 =70 -30 =80 -30 =60 -60 = 70 -10 =50 -30 =50 -10 =60 +30 = 20 -10 =50 -40 =60 -20 =20 -10 = 40 -40 =20 +40 =30 +50 =40 +30 =一年级100以内整十数加减法计算题班级 姓名50 +40 =30 -10 =10 +80 =60 -60 = 30 +60 =30 -30 =40 +60 =60 -60 = 70 +10 =90 -80 =30 +20 =60 +40 = 40 -10 =80 +20 =30 -10 =70 -30 = 30 +50 =20 +20 =50 -40 =30 -30 = 80 +10 =90 +10 =30 +40 =50 +30 = 20 -20 =10 -10 =80 +10 =40 -20 = 20 +10 =40 +30 =40 +40 =90 -10 = 80 +20 =30 +60 =80 +20 =50 +30 = 10 -10 =70 +30 =40 -10 =80 +20 = 60 +10 =50 +20 =80 +10 =80 -70 = 20 -20 =50 -20 =40 -10 =90 +10 = 30 +40 =10 +40 =30 -20 =10 -10 = 80 -60 =30 -10 =50 +40 =80 -50 = 10 +10 =30 +50 =30 -30 =90 +10 = 70 +30 =70 +20 =20 +50 =40 -40 = 20 +60 =30 -20 =70 -10 =50 +50 = 40 +40 =40 +10 =30 +60 =20 -10 = 90 +10 =20 +30 =50 -50 =60 +20 = 30 -20 =90 -80 =10 -10 =40 -20 = 10 -10 =30 +50 =10 +50 =50 +10 = 30 +30 =20 +10 =70 -60 =90 +10 = 50 +30 =80 +20 =80 -60 =60 +30 = 60 -20 =70 +10 =80 +10 =50 -30 = 20 -10 =30 +20 =20 +70 =60 +30 = 30 +60 =50 +40 =20 +30 =90 -90 =一年级100以内整十数加减法计算题班级 姓名50 +50 =60 -20 =50 +20 =50 +10 = 10 +40 =50 +20 =40 -20 =20 +60 = 50 +40 =50 +20 =50 -20 =30 +40 = 10 -10 =60 +30 =30 -30 =90 +10 = 40 -30 =90 +10 =20 -20 =60 -30 = 10 -10 =10 +90 =80 -70 =50 +10 = 30 +60 =20 -10 =30 +40 =20 -10 = 20 +70 =70 -40 =70 -50 =60 +40 = 10 +70 =50 -50 =90 -90 =50 -30 = 30 +40 =60 +40 =70 +30 =40 -10 = 10 +70 =50 -40 =30 +10 =10 +80 = 30 -30 =40 +10 =20 +10 =70 +10 = 60 +10 =30 +50 =10 +80 =40 -10 = 70 -40 =70 -70 =70 +20 =90 -30 = 30 -20 =60 +20 =40 -30 =10 +20 = 50 +20 =80 -20 =40 +60 =60 +10 = 10 -10 =50 -30 =90 +10 =30 +20 = 50 +10 =10 -10 =20 -20 =10 -10 = 80 -10 =10 -10 =70 +10 =60 +20 = 40 +30 =70 -20 =90 +10 =90 +10 = 50 -40 =80 +10 =20 +60 =90 +10 = 10 +60 =50 -40 =40 +60 =50 +50 = 60 +30 =70 -50 =70 -60 =90 -50 = 10 +50 =80 -70 =60 +10 =70 +20 = 80 +20 =80 +10 =40 -10 =90 -80 = 30 +70 =20 -20 =60 -30 =70 +30 =一年级100以内整十数加减法计算题班级 姓名20 +50 =10 +80 =50 +20 =20 -10 = 60 -60 =40 -30 =30 -10 =60 +10 = 50 +10 =90 +10 =90 -40 =90 -40 = 90 +10 =80 -60 =20 +80 =50 +10 = 50 +30 =10 +70 =80 +20 =60 +20 = 70 +20 =10 -10 =80 -20 =30 +20 = 80 +20 =80 -60 =10 +10 =80 -20 = 40 -20 =20 -10 =10 -10 =50 -50 = 40 +30 =10 +40 =40 +50 =70 -70 = 20 +60 =40 +30 =50 -20 =70 -10 = 50 -40 =80 -40 =80 +10 =20 +80 = 50 +30 =60 +30 =30 -30 =20 -10 = 20 +70 =60 +20 =20 -10 =90 +10 = 20 +40 =80 +20 =80 -70 =60 +10 = 70 +10 =20 +50 =20 +40 =20 -10 = 10 -10 =50 +40 =90 -80 =90 -80 = 60 +20 =70 -20 =50 -10 =90 +10 = 40 -40 =60 -40 =50 +10 =40 -30 = 90 -30 =20 +50 =90 +10 =50 +10 = 80 +20 =30 +60 =30 -30 =20 +40 = 30 +30 =70 -50 =90 +10 =80 +10 = 10 +40 =20 +70 =80 +10 =20 +40 = 20 -20 =40 +10 =50 -10 =60 +10 = 40 +20 =40 -40 =50 -10 =70 +10 = 90 +10 =30 +20 =50 -20 =10 -10 = 80 +10 =60 -10 =40 +20 =90 -10 =一年级100以内整十数加减法计算题班级 姓名60 +20 =50 +40 =40 -40 =90 -10 = 20 +70 =60 +10 =70 +20 =40 +30 = 80 -70 =90 -20 =70 -30 =90 -30 = 40 -20 =70 +10 =70 +20 =30 -10 = 20 -20 =90 +10 =80 +20 =60 -20 = 20 -20 =10 -10 =90 -60 =70 -30 = 80 -80 =70 +10 =80 +20 =70 +30 = 50 -10 =20 +80 =80 +20 =60 +40 = 70 +30 =10 +10 =50 +50 =60 +20 = 30 +50 =20 +10 =30 -20 =40 -20 = 50 -50 =30 +20 =30 -30 =10 -10 = 90 +10 =60 -50 =40 -40 =80 +10 = 80 +10 =90 -80 =30 +20 =20 -10 = 60 +30 =20 +20 =20 +60 =10 +90 = 30 -20 =50 +20 =10 +20 =10 -10 = 70 +10 =80 +20 =90 +10 =90 +10 = 60 -10 =60 +20 =50 -10 =90 -70 = 20 +60 =50 -20 =70 -40 =20 -20 = 70 +20 =10 -10 =10 +10 =60 -60 = 80 +10 =10 +20 =10 +80 =40 +40 = 60 +20 =10 +70 =40 +60 =10 -10 = 60 -60 =30 -10 =50 +40 =80 +20 = 80 +10 =90 -80 =80 +10 =30 -20 = 90 +10 =10 +20 =70 +20 =80 +10 = 60 +20 =50 +20 =80 -70 =90 -70 = 80 -40 =40 -40 =70 +10 =70 -70 =一年级100以内整十数加减法计算题班级 姓名30 +30 =20 -10 =20 +60 =90 +10 = 50 -10 =20 -20 =40 +60 =60 +40 = 40 -40 =90 +10 =40 -40 =90 -40 = 60 +40 =90 -20 =20 +30 =30 +60 = 10 +30 =40 +20 =70 -70 =90 -60 = 30 -10 =20 +80 =70 -30 =90 +10 = 70 +20 =10 +80 =50 +10 =90 -80 = 80 +10 =40 +60 =50 -50 =90 -20 = 10 +90 =30 -10 =20 +70 =40 +60 = 80 +10 =50 -10 =50 +50 =80 +20 = 60 -50 =90 +10 =30 +40 =90 +10 = 40 -30 =30 -10 =40 -30 =90 -40 = 10 +40 =80 +10 =40 -10 =80 +10 = 40 +10 =70 +20 =50 -30 =30 -20 = 40 -20 =30 -10 =90 -80 =50 -50 = 30 +10 =60 -50 =20 +80 =20 -10 = 40 -20 =90 -80 =50 -50 =60 -40 = 60 +10 =50 -10 =50 +20 =30 +70 = 30 -30 =90 -60 =40 -40 =90 +10 = 50 -30 =40 +20 =60 +30 =60 +10 = 20 +10 =50 +30 =10 -10 =20 -10 = 40 -40 =30 +40 =40 +30 =90 +10 = 50 +20 =60 -50 =90 +10 =90 -40 = 20 +50 =50 +10 =40 +10 =30 +10 = 10 +20 =10 +30 =20 +20 =30 -20 = 90 -90 =10 +90 =30 +40 =90 -70 =一年级100以内整十数加减法计算题班级 姓名90 -40 =70 +10 =50 +20 =40 +60 = 60 +40 =60 +30 =60 +10 =10 +30 = 40 -30 =30 +70 =40 +50 =60 +10 = 10 +50 =80 -20 =70 -20 =90 -90 = 40 +50 =60 -20 =30 -10 =50 -40 = 30 +40 =70 +30 =80 -30 =10 +40 = 70 +20 =90 -60 =30 +20 =20 +10 = 80 -10 =50 +50 =40 -20 =70 +20 = 80 +20 =40 -30 =30 -20 =80 +10 = 20 +70 =90 +10 =10 -10 =80 +10 = 20 -10 =80 +10 =70 -20 =10 -10 = 70 +10 =50 +40 =50 -30 =20 +70 = 20 -10 =20 +80 =70 -40 =10 +10 = 40 -10 =70 +20 =80 -60 =80 +20 = 90 -20 =70 +10 =60 -40 =60 +30 = 10 -10 =50 +40 =70 +20 =50 +50 = 20 +30 =50 +10 =50 +20 =10 +40 = 50 -30 =70 -50 =10 -10 =90 +10 = 10 +90 =70 -10 =50 +10 =40 -30 = 90 -90 =10 +50 =40 -10 =80 +10 = 20 -10 =90 -50 =50 -50 =30 +50 = 60 +30 =20 +10 =20 -10 =50 +30 = 70 -60 =30 -20 =90 -70 =90 -20 = 40 -20 =70 -20 =30 +40 =40 -10 = 80 +10 =70 +20 =90 -40 =60 +10 = 10 -10 =20 +80 =50 +50 =70 +30 =一年级100以内整十数加减法计算题班级 姓名40 +20 =20 -20 =30 -20 =30 -20 = 80 -40 =80 +10 =80 -10 =50 +40 = 80 +10 =80 -60 =80 +20 =40 +10 = 70 -60 =10 +80 =60 -30 =20 +80 = 70 -20 =50 +40 =80 +20 =70 +20 = 10 -10 =30 -20 =30 +60 =20 +20 = 40 +50 =40 +40 =20 +50 =80 +10 = 70 -60 =90 +10 =60 -40 =80 +20 = 30 -30 =10 -10 =20 +20 =90 +10 = 60 +30 =30 -10 =30 -20 =40 -20 = 60 -10 =70 +30 =40 +20 =90 -50 = 90 -90 =80 +20 =60 +40 =30 -30 = 40 -10 =80 -50 =70 -50 =50 +10 = 50 -10 =20 +60 =50 +50 =30 -30 = 30 -30 =60 -40 =60 +30 =50 -30 = 40 -20 =40 -30 =20 +20 =10 +80 = 30 +70 =40 +40 =30 -20 =80 +10 = 70 -50 =40 +50 =20 +80 =10 -10 = 30 +70 =10 -10 =80 +20 =10 +20 = 40 -30 =70 -60 =50 -40 =30 +60 = 50 +20 =80 +10 =90 +10 =50 +30 = 60 +20 =10 +10 =10 -10 =60 -10 = 30 +30 =90 +10 =20 +10 =30 -10 = 10 +10 =10 +50 =40 -10 =40 -30 = 80 +20 =80 +10 =50 +30 =70 -50 = 10 -10 =40 -20 =90 -50 =70 -70 =一年级100以内整十数加减法计算题班级 姓名70 -20 =60 +40 =50 -50 =20 -10 = 20 +60 =30 +40 =50 +20 =50 +40 = 90 -50 =60 +20 =40 +10 =40 -30 = 30 +20 =30 +70 =50 +50 =30 -10 = 50 +30 =60 -30 =60 +10 =10 -10 = 60 +40 =80 +20 =20 +70 =90 -40 = 60 +10 =50 -20 =70 +10 =10 -10 = 30 +50 =30 +10 =60 -60 =40 -20 = 80 +20 =40 +20 =40 +50 =10 -10 = 60 -20 =80 +20 =40 -20 =50 -50 = 60 -20 =60 +40 =10 -10 =70 +10 = 40 +50 =10 -10 =40 +10 =40 -10 = 60 -40 =20 +50 =60 +30 =20 +20 = 10 -10 =70 +20 =10 +80 =60 -30 = 10 -10 =10 +80 =90 +10 =40 -20 = 90 -30 =60 +40 =40 +40 =70 -50 = 60 -60 =10 +30 =20 +30 =90 +10 = 60 +40 =10 -10 =10 +80 =80 -30 = 20 -10 =70 -30 =30 -10 =20 -10 = 30 +50 =90 +10 =50 -10 =10 -10 = 20 +10 =10 -10 =80 -80 =60 +10 = 50 -40 =20 -10 =70 -60 =50 +10 = 40 +60 =40 -40 =90 +10 =70 +20 = 80 +20 =20 +40 =70 +30 =60 +40 = 10 -10 =60 +40 =20 -20 =50 +40 = 10 -10 =10 +80 =40 -20 =70 -50 =一年级100以内整十数加减法计算题班级 姓名30 +30 =20 -10 =40 +10 =40 -20 = 60 +30 =10 -10 =80 +20 =50 +30 = 40 +20 =10 -10 =70 -50 =10 +50 = 40 +50 =30 -10 =40 -40 =60 -60 = 90 +10 =20 -20 =30 +50 =30 -10 = 20 -20 =60 -10 =90 -40 =40 -10 = 90 -80 =10 -10 =40 +60 =70 -70 = 20 -20 =20 -20 =10 +10 =30 +20 = 70 +30 =30 -10 =50 +40 =70 -70 = 50 -20 =20 +20 =40 +40 =70 -20 = 30 -30 =50 -40 =70 +10 =40 -20 = 20 -10 =90 +10 =90 +10 =10 +90 = 10 -10 =90 +10 =40 +30 =10 -10 = 40 -40 =10 -10 =30 -10 =70 +20 = 30 -30 =70 +10 =60 +40 =90 +10 = 90 +10 =80 -40 =50 -30 =60 -60 = 30 +70 =90 -40 =40 +20 =30 +10 = 90 -20 =50 +10 =60 -20 =40 +20 = 90 +10 =30 -20 =30 -30 =40 -10 = 10 +70 =60 +10 =70 -20 =80 -80 = 50 +10 =30 +50 =30 -10 =90 -10 = 60 -60 =90 +10 =30 -20 =60 +20 = 10 -10 =10 +50 =50 +50 =80 +10 = 30 +70 =60 +40 =60 -50 =20 -20 = 60 +10 =40 +40 =20 +60 =40 +60 = 20 +70 =40 +60 =90 -90 =30 -20 =一年级100以内整十数加减法计算题班级 姓名20 -10 =70 +30 =10 -10 =40 +50 = 70 -60 =40 -30 =60 +20 =70 -10 = 80 +10 =50 +50 =80 -10 =20 +20 = 70 -60 =70 +30 =20 +60 =40 +40 = 90 +10 =20 -10 =20 -10 =60 +10 = 90 +10 =60 +30 =10 -10 =70 +30 = 50 +10 =80 +20 =40 -40 =10 +30 = 70 +30 =20 -10 =70 -60 =50 +30 = 10 +40 =70 -70 =50 +20 =20 +30 = 80 -20 =60 -30 =40 +10 =90 -10 = 70 +20 =80 -10 =10 +50 =20 +20 = 40 +30 =50 +30 =50 -30 =80 +20 = 40 -20 =40 -10 =80 +20 =20 -10 = 80 +20 =20 +20 =80 +10 =30 +70 = 30 +50 =80 -60 =30 -20 =90 +10 = 40 -40 =90 +10 =40 +40 =10 +60 = 20 -20 =90 +10 =50 +20 =10 +40 = 10 +80 =30 +60 =40 +40 =70 +20 = 80 +10 =30 -20 =60 -50 =20 -10 = 90 +10 =90 +10 =70 -50 =90 +10 = 70 -10 =30 -30 =90 +10 =20 +80 = 20 +50 =50 +40 =60 +20 =60 +30 = 30 +50 =50 +30 =10 +50 =50 +10 = 50 +50 =40 -10 =10 -10 =40 +50 = 40 +60 =50 -30 =20 -10 =90 -40 = 40 -10 =50 +20 =90 -60 =60 -40 =一年级100以内整十数加减法计算题班级 姓名10 +70 =40 +30 =80 +20 =10 +80 = 60 +30 =30 -30 =90 +10 =40 -40 = 80 +10 =90 +10 =80 -30 =60 +40 = 10 -10 =10 +60 =50 +50 =50 -20 = 10 -10 =40 -10 =50 +20 =90 +10 = 60 -40 =60 +40 =30 -20 =10 -10 = 20 +10 =40 +30 =40 +60 =50 -10 = 70 +20 =40 +60 =40 +60 =80 -30 = 80 -30 =10 +80 =40 -30 =30 -20 = 10 +30 =40 +40 =90 +10 =60 +20 = 90 -40 =10 +10 =20 +50 =60 +20 = 80 +20 =10 -10 =60 -10 =20 -20 = 10 +70 =20 -20 =30 +20 =10 -10 = 80 -40 =50 +40 =90 +10 =90 -50 = 50 +20 =10 -10 =90 +10 =80 -30 = 80 -10 =50 +50 =50 +10 =60 -50 = 50 +50 =90 +10 =10 -10 =40 +60 = 50 +20 =80 -30 =50 +20 =70 -60 = 20 +50 =40 -20 =50 +10 =30 +60 = 70 +20 =80 +10 =90 -70 =30 +60 = 80 +10 =20 +50 =90 +10 =60 +40 = 50 +10 =90 +10 =40 -40 =70 -30 = 70 +20 =30 +60 =30 +60 =60 -40 = 10 +90 =10 +10 =80 +10 =20 -20 = 30 +50 =10 +90 =90 -60 =20 +70 = 70 +10 =20 +30 =60 -30 =60 +20 =一年级100以内整十数加减法计算题班级 姓名70 +20 =10 -10 =70 +20 =90 -70 = 10 +90 =60 -40 =90 -40 =40 +30 = 50 +30 =80 -10 =20 +70 =90 -10 = 30 +30 =50 +50 =50 +40 =20 +10 = 80 -80 =40 -40 =90 +10 =60 -40 = 30 +60 =60 +30 =20 -10 =80 -20 = 20 -20 =60 -30 =30 +60 =40 -40 = 10 -10 =10 -10 =60 +30 =20 +50 = 70 -10 =70 -20 =20 -20 =70 +30 = 90 +10 =30 +50 =50 +40 =10 +30 = 60 +30 =90 -80 =70 -20 =60 -50 = 90 +10 =50 +50 =40 +60 =80 +10 = 50 +10 =90 -10 =30 +20 =50 +20 = 90 -10 =50 +30 =10 -10 =40 -30 = 50 +40 =10 +80 =20 -10 =20 +10 = 50 +10 =10 +10 =90 -60 =90 +10 = 20 +20 =30 -20 =80 +10 =80 +20 = 50 +40 =10 -10 =20 +80 =20 -20 = 60 +30 =50 -50 =10 -10 =10 +40 = 90 +10 =70 -70 =80 -50 =60 -30 = 30 -10 =40 -10 =90 -80 =30 +40 = 80 -50 =10 -10 =80 -10 =70 +10 = 30 -20 =50 +30 =70 +30 =90 -30 = 40 -30 =50 +10 =50 +40 =20 +50 = 20 +10 =90 +10 =80 +10 =10 -10 = 30 -10 =30 -10 =70 -10 =80 -20 =一年级100以内整十数加减法计算题班级 姓名50 +20 =50 -40 =20 +60 =90 -70 = 80 +10 =90 +10 =20 +30 =70 +20 = 20 -20 =30 -10 =90 -60 =90 +10 = 40 +60 =40 +50 =20 +40 =50 +20 = 80 -60 =30 -20 =30 +60 =50 +20 = 60 -20 =10 -10 =60 +30 =40 -20 = 80 -20 =10 +50 =90 -20 =50 +10 = 80 +20 =80 +20 =10 -10 =30 +70 = 10 -10 =30 +60 =70 -30 =80 +20 = 70 +10 =70 -30 =20 +70 =60 +30 = 40 +40 =20 -10 =50 -10 =80 +20 = 30 -10 =40 +10 =50 -30 =50 +30 = 70 -60 =70 -50 =80 -30 =50 +40 = 70 +30 =60 +10 =80 -60 =80 +10 = 30 +20 =50 +20 =20 +50 =70 -50 = 70 +20 =80 +10 =20 +20 =60 +20 = 50 +40 =40 +60 =90 +10 =30 +60 = 90 -10 =40 -30 =20 +30 =30 +10 = 80 -50 =50 -40 =50 -10 =60 +20 = 40 +40 =80 -80 =90 -20 =50 -30 = 20 +30 =60 +30 =40 +60 =30 +10 = 20 +60 =80 -60 =10 +20 =70 +10 = 70 +10 =90 +10 =50 -50 =40 +60 = 10 -10 =20 -10 =60 +30 =40 +50 = 70 +30 =40 +60 =10 -10 =20 -20 = 90 -40 =10 +60 =40 -30 =20 -10 =一年级100以内整十数加减法计算题班级 姓名50 -10 =70 -50 =50 +20 =30 +40 = 80 +20 =50 +30 =70 +20 =60 +30 = 60 +30 =60 +10 =30 +70 =40 -20 = 80 -50 =80 +20 =60 +40 =50 -50 = 80 +20 =90 +10 =30 -20 =10 -10 = 70 -30 =60 +20 =70 -30 =50 +20 = 50 -30 =30 +60 =40 +60 =90 +10 = 80 +10 =70 +10 =80 -40 =60 -20 = 50 -30 =50 -20 =10 -10 =90 -50 = 40 +20 =80 -50 =90 +10 =50 -20 = 10 -10 =80 -20 =80 +10 =10 -10 = 50 -40 =40 +10 =80 -40 =70 -20 = 20 -20 =90 -90 =50 -50 =30 +60 = 90 -50 =80 +20 =60 +30 =10 -10 = 20 -20 =50 -40 =90 -30 =10 +40 = 80 +20 =70 -60 =60 +10 =70 +20 = 80 +20 =90 +10 =20 +80 =90 +10 = 70 -60 =80 -20 =30 -30 =40 -20 = 60 -40 =80 +20 =60 +30 =40 +60 = 10 +60 =50 +40 =30 +30 =20 +70 = 90 -50 =80 +20 =60 -10 =60 +20 = 10 -10 =90 -60 =90 +10 =50 -30 = 90 +10 =30 +20 =10 -10 =80 +10 = 20 -20 =60 +10 =90 +10 =50 -10 = 30 +20 =40 -40 =40 +40 =10 -10 = 60 -30 =60 -40 =40 +30 =80 -70 =一年级100以内整十数加减法计算题班级 姓名20 +20 =40 -30 =40 -30 =90 -60 = 80 -10 =80 -70 =90 -20 =90 -60 = 40 +60 =90 +10 =20 -20 =70 +30 = 90 -90 =10 +40 =40 +40 =10 +50 = 40 +40 =20 +60 =50 +40 =10 -10 = 10 +10 =10 +10 =90 -40 =50 +40 = 20 -20 =50 +50 =90 -90 =50 +10 = 30 +70 =30 +20 =40 +20 =20 +70 = 60 -40 =30 +40 =20 -10 =20 +70 = 10 +50 =20 -10 =20 +60 =60 -50 = 10 -10 =80 -10 =10 -10 =10 -10 = 90 -30 =80 +10 =50 -40 =20 -10 = 10 +50 =50 +30 =70 +20 =70 +10 = 60 +20 =20 -10 =60 -30 =10 -10 = 80 -20 =70 -50 =80 -20 =10 +80 = 80 +20 =40 +40 =30 -10 =50 +30 = 30 +70 =70 +30 =40 -20 =50 +40 = 80 -40 =60 -20 =10 +80 =90 -50 = 40 +60 =30 +40 =90 -70 =90 -80 = 10 -10 =80 -80 =90 +10 =30 +20 = 90 -30 =90 +10 =70 +30 =90 -10 = 60 -30 =50 -50 =10 -10 =80 +10 = 50 -20 =70 +10 =20 +10 =70 -50 = 20 -10 =70 +30 =50 -50 =70 +10 = 70 -40 =20 -10 =60 +10 =80 +20 = 80 +20 =10 +70 =10 +30 =50 +20 =一年级100以内整十数加减法计算题班级 姓名90 -60 =30 -30 =10 -10 =20 -20 = 10 +50 =80 -30 =10 -10 =20 -10 = 70 -60 =20 -10 =10 -10 =40 +40 = 10 -10 =70 +10 =40 +30 =40 +30 = 10 -10 =30 +60 =50 +20 =50 +30 = 20 +30 =60 +20 =40 -30 =80 -50 = 40 -10 =50 +30 =60 +30 =60 -40 = 70 +30 =20 -10 =20 +40 =20 +50 = 40 +30 =10 +50 =40 -30 =50 +30 = 10 +80 =80 -10 =50 -30 =90 +10 = 10 -10 =80 +20 =70 +10 =10 -10 = 30 +40 =80 -80 =90 -10 =70 +10 = 60 -60 =50 +10 =90 +10 =50 +10 = 40 +40 =20 -10 =90 +10 =90 -70 = 40 +30 =70 -40 =20 +80 =70 +10 = 50 -10 =10 +60 =40 +40 =90 -80 = 20 -10 =80 +10 =60 -50 =80 +10 = 30 -20 =80 +10 =20 +20 =20 +80 = 90 +10 =10 -10 =40 +60 =10 +30 = 40 -20 =50 -30 =90 +10 =80 -80 = 30 +50 =60 -40 =50 -20 =40 +50 = 20 -10 =40 -20 =40 +20 =30 +20 = 60 -40 =60 +30 =40 -20 =70 -40 = 50 -30 =40 -30 =50 -50 =80 +20 = 30 -20 =20 -10 =80 +20 =20 -20 = 40 -40 =40 +60 =70 -60 =30 -30 =一年级100以内整十数加减法计算题班级 姓名60 -50 =50 -30 =50 +40 =80 +10 = 20 -20 =20 +80 =90 +10 =10 +50 = 60 -20 =20 +60 =90 +10 =50 -30 = 40 +30 =50 +10 =20 +80 =90 +10 = 30 -30 =80 -70 =50 -50 =40 -10 = 20 -10 =60 -30 =10 -10 =70 -70 = 20 +10 =30 +30 =20 -20 =80 +10 = 50 +20 =50 -30 =60 +40 =40 +40 = 80 -50 =40 +50 =40 +10 =70 +10 = 40 -40 =30 -20 =10 -10 =50 +40 = 20 -10 =10 +90 =40 +30 =20 +40 = 40 +60 =40 -30 =10 +90 =40 +10 = 60 -20 =90 +10 =50 +20 =50 -40 = 80 +20 =60 -10 =10 -10 =40 +60 = 90 -20 =40 +50 =20 +40 =10 -10 = 50 -20 =80 +10 =40 -40 =40 -20 = 70 -50 =10 -10 =20 +50 =20 +20 = 20 +70 =60 +30 =50 +10 =70 +30 = 90 +10 =70 +10 =70 +20 =70 +20 = 30 +70 =70 -70 =60 +10 =30 -20 = 60 +20 =90 +10 =90 -70 =30 +60 = 40 +10 =20 +10 =80 +20 =50 +50 = 10 -10 =50 +20 =30 +70 =20 +30 = 10 +70 =70 +30 =80 -20 =40 -20 = 90 -90 =50 +50 =80 -20 =40 -10 = 10 +30 =90 -40 =90 +10 =40 -30 =。

人教版数学一年级下册100以内的加法和减法(一)-01整十数加、减整十数-随堂测试习题02

人教版数学一年级下册100以内的加法和减法(一)-01整十数加、减整十数-随堂测试习题02

《整十数加减整十数》同步练习一、单选题1.整十数的个位数是()A. 0B. 5C. 不确定2.整十数70里面有()个十A. 5B. 6C. 73.小明本来有40本书,刚才又买了10本书,那么现在有()本书A. 50B. 60C. 704.妈妈有50块钱,小红拿走了20元,妈妈还剩下()元A. 10B. 20C. 305.9个十是()A. 70B. 80C. 90二、判断题1.50+30=70 ()2.整十数加整十数可以之间将两个整十数的十位数相加后,在后面加一个0()3.两个加数都是30,和是60 ()4.20+70比10+80要大()5.小红这个月吃了20个苹果,还剩下10个,那么妈妈买了40个苹果()三、填空题1.男同学有40人,女同学有20人,男同学比女同学多________人。

2.90-60=________3.十位数之间的相加减直接将________位数相加减。

4.学校有70个足球和篮球,足球有40个,那么篮球有________个。

5.商店先运来60袋大米,又运来30袋大米,那么商店总共运来了________袋大米。

6.书包一个40元,书一本20元,一个书包和一本书一共________元。

7.一支钢笔20元,小明付款50元,那么应该找回小明________元。

8.养鸡场有40只母鸡和50只公鸡,那养殖场一共有________只鸡。

9.汽车城有60辆车,开走了30辆之后,还剩________辆。

10.妈妈买了80个桃子,吃了20个,现在还剩下________个。

四、应用题1.一个笼子里有20只鸡,30只鸭子,40只鹅,请问这个笼子里有多少只动物?2.爸爸有90元钱,给了儿子30元后,又给了女儿10元,那么爸爸还剩下多少元?3.动物园有70只动物,其中10只是老虎,30只是大象,剩下的都是狮子,请问动物园有多少只狮子?4.车站有90辆汽车,先开走了50辆,又开走了20辆,请问车站还剩下多少辆汽车?5.爸爸今年50岁,再过40年爸爸就多少岁了?答案解析部分一、单选题1.【答案】A【解析】【解答】整十数是一个两位数,个位数是0【分析】整十数的十位数不确定,个位数是02.【答案】C【解析】【解答】70里面有7个十,整十数里面都有整数个十【分析】几十里面有几个十,这是整十数的一个特征3.【答案】A【解析】【解答】本来有40本的书,加上买来的10本,现在有40+10=50本书【分析】将原来的数和买来的数加起来就是要求的4.【答案】C【解析】【解答】本来的50元,减去拿走的20元,还剩下50-20=30元【分析】将本来的钱数减去拿走的,就等于要求的剩下的多少元5.【答案】C【解析】【解答】多少个十就是几十,是一个整十数【分析】几十里面就有几个十二、判断题1.【答案】错误【解析】【解答】50+30=80才是正确的,而不是70【分析】要熟悉整十数的加减法2.【答案】正确【解析】【解答】这是整十数的简便的一种算法,直接对十位数相加减【分析】整十数之间的加减直接对十位数进行加减比较简便3.【答案】正确【解析】【解答】30+30=60,所以这题是正确的【分析】加数就是加号两边的数,30加30等于604.【答案】错误【解析】【解答】20+70=90,10+80=90,所以是相等的【分析】先算出两个式子的得数都是90,所以是相等的,此题错误【解析】【解答】20+10=30,所以妈妈买了30个苹果才对,此题错误【分析】将吃了多少苹果和剩下多少苹果相加,得到的就是买了多少了苹果三、填空题1.【答案】20【解析】【解答】40-20=20,所以男同学比女同学多20人【分析】将男同学的数量减去女同学的数量,就是相差的数目2.【答案】30【解析】【解答】90-60等于30,所以应该填30【分析】要熟悉整十数的加减法3.【答案】十【解析】【解答】十位数加减十位数,应该直接在十位数上进行运算【分析】将十位数进行加减,再加上0,就可以得到得数4.【答案】30【解析】【解答】70-40=30,所以篮球有30个【分析】总的球类数目减去足球数目,就得到篮球数目5.【答案】90【解析】【解答】60+30=90,所以一共运来了90袋大米【分析】将两次运来的大米数目相加,得到总共运来了多少袋6.【答案】60【解析】【解答】将书包和书的钱数目相加,得到一共40+20=60元【分析】书包的钱加上书的钱,得到所求7.【答案】30【解析】【解答】50-20=30,所以应该找回30元【分析】付款的价格减去实际价格,所以的到应该找回多少钱8.【答案】90【解析】【解答】40+50=90,所以一共有90只鸡【分析】公鸡和母鸡的数目相加,得到所有的鸡的数目9.【答案】30【解析】【解答】60-30=30,所以还剩下30辆车【分析】原来的60辆车,减去开走的30辆车,的到还剩下30辆车【解析】【解答】80-20=60,所以还剩下60个桃子【分析】80个桃子减去吃了的20个,还剩下60个没吃四、应用题1.【答案】解:20+30+40=90,答:有90只动物【解析】【分析】三个加数的加法和两个加数的加法都是只需要将十位数上的数相加减2.【答案】解:爸爸有90元,给了2次钱后还剩下90-30-10=50元答:爸爸还剩下50元。

一年级下6.1《整十数加减整十数》

一年级下6.1《整十数加减整十数》

一年级下6.1《整十数加减整十数》《一年级下 61《整十数加减整十数》》对于一年级的小朋友们来说,数学的世界就像一个充满奇妙和惊喜的乐园。

在这个乐园里,“整十数加减整十数”可是一个非常重要的知识关卡哦!那什么是整十数呢?像 10 、 20 、 30 、 40 、 50 、 60 、 70 、 80 、90 这样个位上是 0 的数,就是整十数。

那整十数的加减法又该怎么算呢?别着急,咱们一起来看看。

比如说,有 30 个苹果,又拿来了 20 个苹果,那现在一共有多少个苹果呢?这就是一个整十数相加的问题。

30 加上 20 ,我们可以这样想:3 个十加上 2 个十,就是 5 个十,5 个十就是 50 。

所以 30 + 20 = 50 。

再比如,有 50 个气球,飞走了 20 个,还剩下多少个气球呢?这就是整十数相减。

50 减去 20 ,我们可以想:5 个十减去 2 个十,还剩下3 个十,3 个十就是 30 ,所以 50 20 = 30 。

为了让小朋友们更好地理解整十数的加减法,老师和家长可以准备一些直观的教具,比如小棒、计数器等等。

咱们先用小棒来演示。

比如计算 40 + 30 ,可以先拿出 4 捆小棒表示 40 ,再拿出 3 捆小棒表示 30 ,把它们合在一起,数一数一共有 7捆小棒,也就是 70 。

再用计数器来看看。

还是算 40 + 30 ,在计数器的十位上拨 4 个珠子表示 40 ,再在十位上拨 3 个珠子表示 30 ,这时十位上一共有 7 个珠子,就表示 70 。

小朋友们在做整十数加减法的时候,要注意先看清楚数字,想清楚是几个十加上或减去几个十,这样就能算得又快又准啦。

那咱们来做几道练习题巩固一下吧。

20 + 50 =() 70 30 =() 60 + 30 =() 90 40 =()小朋友们,做完这些题目,是不是觉得整十数的加减法也没有那么难呀?在日常生活中,整十数的加减法也有很多用处呢。

比如去超市买东西,一包薯片 10 元,买 3 包就是 30 元;妈妈买了 60 个鸡蛋,吃了 20 个,还剩下 40 个。

整十数加减整十数练习题

整十数加减整十数练习题

姓名:1. 50+20+30= 30+20+40= 40-20-10=70-30-20= 50-20+10= 70+10-30=2.40元 20元 30元(1)买一个书包和一本书一共用多少元?(2)付给售货员100元钱,应找回多少元?3.用30、50、80三个数写出两个加法算式、两个减法算式.___________ ________________________ _____________整十数加、减整十数1.口算.70+7= 60-40= 32+8= 7+669-69= 21-20= 57-7= 4+5=16-9= 30-20= 40+50=3.下面哪个题错了,请你在()里改过来.55-5=5() 1+10=11()90-20=7() 10+3=40()46-6=4() 4+60=100()4.列式计算.(1)一个加数是40,另一个加数是30,和是多少。

_ _________________________________(2)20与70的和是多少?_________________________________(3)减数是60,被减数是80,差是多少?________________________________5.计算两步式题.30+20+10= 70-20-30=90-40-30= 80-30-30=40+40+10= 40+10+50=6.应用题.1)商店先运来20条,又运来80条,商店共运来多少条金鱼?(2)学校有80个和,其中有30个,有多少个?(3)妈妈买来30个,吃了一些,还剩下20个,吃了多少个?(4)汽车站有40辆,第一次开走20辆,第二次开走10辆,两次共开走多少辆?(5)小军今年7岁,再过几年就是10岁?(6)饲养场共养猫80只,有20只,10只,剩下的是,有多少只?1.看图写算式.一共有()个人在台上表演?□+□=□3.用你喜欢的方法计算.50+30= 30+30= 20+70=80-50= 60-30= 90-20=4.比一比.60-40○2 20○40+20 70-60○1080+9○90 93-3○96 90○50+408+9<□ 88-8>□ 100-□○1001) 70+10= 2) 80-20= 3) 130-30= 4) 80-20= 5) 150-30=6) 190-20= 7) 50-20= 8) 60+20= 9) 90-90= 10) 90+80=15) 20+20= 16) 60+80= 17) 110-60= 18) 50+30= 19) 40+20= 11) 10-10= 12) 170-80= 13) 50+10= 14) 30+30= 20) 110-60= 21) 190-20= 22) 160+40= 23) 90+40= 24) 160-0= 25) 130-40= 26) 130-10= 27) 20+120= 28) 60+40= 29) 80+60= 30) 170-80= 31) 130+10= 32) 180-10= 33) 150+10= 34) 50-20= 35) 60+60= 36) 10-10= 37) 20+70= 38) 90+90= 39) 80+50= 40) 50+50= 41) 80+90= 42) 160+20= 43) 80+10= 44) 160+20= 45) 170-10=46) 140-90= 47) 90-0= 48) 90-80= 49) 90+30= 50) 40+70=51) 10+160= 52) 90-60= 53) 60-20= 54) 150-70= 55) 40+40= 56) 150-30= 57) 20+10= 58) 130-40= 59) 90+90= 60) 70+90=。

一年级数学下册《整十数加减整十数》

一年级数学下册《整十数加减整十数》
女同学有20名。
(1)男同学比女同学多多少名?
= 30 - 20 10 (名)
(2)我们一共有多少名同学?
= 20 + 30 50 (名)
30
你能提出什么数学问题?
100以内的加法和减法(一)
整十数加、减整十数
一、复习旧知
1.算一算。
2+3= 5 5+4= 9 3+4= 7
比比看谁都能 算正确。
6-2= 4 7-4= 3 9-4= 5
2.我会填
(1)5个十是(50 );8个十是(80 ); ( 2)40里面有(4 )个十; 70里面有( 7 )个十。 (3)60里面有( 6 )个十;90里面有( 9 )个十。 3 .我发现
做 加 法
50 60 70 80 90
做 减 法
50 40 30 20 10
小动物后面都藏着什么数?
40 + 30 = 70 50 - 40 = 10 80 - 20 = 60
猜一猜
想一想,你会吗?
已经吃了30个 苹果 。
妈妈原来买了多少 个苹果?
还剩20个
30+20=50(个)
我们班男同学有 30名。
6-4=2
60-40=20
7-3 = 4
70-30= 40
我发现,整十数加、减整十数, 只要把十位上的数相加减就可 以了。
你有什么发现?
三、知识应用
(三)解决问题
1. 买上面三样物品一共还需可要以问多:少帽钱子?比 你还能50提+出1什0么+30=9围0巾(多元多)少钱?
数学问题?
2. 付给售货员100元,应找回多少钱? 100-90=10(元)
130+-20=?
二、探究新知
(二)整十数加整十数 10+20=30

一年级数学下册第六单元《100以内的加减法》专项练习

一年级数学下册第六单元《100以内的加减法》专项练习

一年级数学下册第六单元《100以内的加减法》专项练习第1课时整十数加、减整十数一、直接写出得数。

4+9= 12-6= 6+8= 13-7=12-2= 15-10= 16+2= 17-6=6+5= 16-7- 11-5= 7+7=二、比一比,算一算。

5+2= 50+20= 9+1= 90+10=6-3= 60-30= 8-2= 80-20=三、填空。

1、10、20、30、()、()、()、()、80、()。

2、被减数是50,减数是20,差是()。

3、两个加数都是20,和是()。

4、由8个十和8个一合起来的数是()。

5、96里面有()个十和()个一。

四、算一算。

10+40= 20+70= 60-50= 70-30=40-20= 40+20= 20+60= 30+50=10+90= 60-10= 90-40= 40+60=五、在○里填“>”、“<”或“=”。

10+10○19 30-20○1 60+30○50+4061○40+30 100○30+70 90-30○20+50六、解决问题。

一件雨衣20元一把雨伞30元1、买一件雨衣和一把雨伞一共要花多少钱?2、一件雨衣比一把雨伞便宜多少钱?第2课时两位数加一位数、整十数一、填一填。

1、86读作();二十七写作()。

2、80里面有()个十。

3、79里面有()个十和()个一。

4、由5个十和5个一合起来的数是(),读作()。

5、90前面的数是(),后面的数是()。

二、比一比,算一算。

3+4= 53+4= 50+20= 53+20=2+7= 62+7= 70+20= 70+23=5+1= 45+1= 40+30= 45+30=6+2= 86+2= 10+60= 10+63=三、在○里填“>”、“<”或“=”。

34+2○54 40+9○94 83+10○13+8060+39○99 12+5○20 20+12○20+21四、在括号里填上合适的数。

一年级数学整十数加减整十数

一年级数学整十数加减整十数

1
30-10= 0 ? 2
想:3个十减1个 十是____ 2 个十。
巩固练习 80-30= 50 60-20=40 40-30=10
巩固练习 2.40+20= 60 60-20= 40 3+2= 5 30+20=50 4+5= 9 40+50=90 6-4= 2 60-40= 20
聚星娱乐 / xqj563qox 聚星娱乐聚星仪器发布基于微软C#/.NET的下一代定制仪器软件架构,及此架构之上的聚星定制 我那时的小学老师——赵老先生,谁叫有次给男人们拿书,所骑自行车与一台货车追尾,未曾之后也没有顾着在那所初 一教书了。荣幸的是,赵老先生而今已无大碍。平时,对于我们一帮小鬼不需要顽皮在为何地步,给赵老先生起的外号 是“机器狼”。到而今,我依然是记得特别逼真,最困难的是对于我们实际上不愿议论别人事了,讲到“机器狼”,有 不少说不出的关于初一的美满回忆事情的能力。在大笑三四年级的在现在,又来了一个老先生,他姓朱,所以对于我们 给朱老先生的外号为“老朱“。 零售村,谁叫刚下过一天两天的雨,路并不好走。即使如此,也提倡不到我那时的都去。的工作原理是什么,经过去好 多块麦地,麦子平时始出泛黄,收割的时候行将临近。对我的情况来说,那条路再熟习不过去。上初一的在现在,遗憾 长期来回走。走在那条熟习的街上,大多数往事的点滴涌上了我那时的心头,我那时的思绪始出搞得有些模糊。但我很 明显,而今不是深思熟虑别人事的在现在,接着我又很容易苏醒了来。我需要,我也确信,在来日的某一天,我就该有 时间去思索和回想然且多的平时与往事,我就该让我自己有富足的工夫去回味和感悟。
小学数学第二册
整十数加,减整十数
一.口算: 3+2= 5 2+7=14 9-4= 5 8+2= 10 3+5= 8 2+4= 6

一年级整十数加整十数的题

一年级整十数加整十数的题

一年级整十数加整十数的题
一、知识点讲解
1. 定义
整十数是指个位为0的两位数,如10、20、30等。

整十数加整十数就是将几个十与几个十相加。

2. 计算方法
计算整十数加整十数时,可以把整十数看成几个十,然后直接相加。

例如,20+30,20就是2个十,30就是3个十,2个十加3个十等于5个十,也就是50。

也可以根据数的组成,十位上的数字相加,个位写0。

如30 + 40,3+4 = 7,结果就是70。

二、题目示例及解析
1. 题目
10+20 =
解析:把10看作1个十,20看作2个十,1个十加2个十等于3个十,所以10+20 = 30。

2. 题目
30+40 =
解析:30是3个十,40是4个十,3个十加4个十等于7个十,即70,也可以直接计算3 + 4 = 7,然后在结果后面添0,得到70。

3. 题目
50+20 =
解析:5个十加2个十等于7个十,所以50+20 = 70。

4. 题目
40+30 =
解析:4个十加3个十等于7个十,结果是70。

5. 题目
60+10 =
解析:6个十加1个十等于7个十,答案为70。

6. 题目
20+70 =
解析:2个十加7个十等于9个十,即90。

一年级下册_整十数加减整十数练习题

一年级下册_整十数加减整十数练习题

一年级下册整十数加减整十数、一位数1. 50+20+30= 30+20+40= 40-20-10=70-30-20= 50-20+10= 70+10-30=2.40元 20元 30元(1)买一个书包和一本书一共用多少元?(2)付给售货员100元钱,应找回多少元?(3)你还能提出什么问题?并列算式解决。

3.用30、50、80三个数写出两个加法算式、两个减法算式.___________ ________________________ _____________整十数加、减整十数1.口算.70+7= 60-40= 32+8=7+6= 15-5= 69-69=21-20= 57-7= 4+5=16-9= 30-20= 40+50=2.选择算式.30: 20+10 50-30 50-20 20+350: 50-10 20+30 56-6 70-5040: 44-40 44-4 40+0 40+406: 56-6 66-6 66-60 26-203.下面哪个题错了,请你在()里改过来.55-5=5() 1+10=11()90-20=7() 10+3=40()46-6=4() 4+60=100()4.列式计算.(1)一个加数是40,另一个加数是30,和是多少。

________________________________________________ (2)20与70的和是多少?______________________________________________ (3)减数是60,被减数是80,差是多少?___________________________________________5.计算两步式题.30+20+10= 70-20-30=90-40-30= 80-30-30=40+40+10= 40+10+50=6.应用题.1)商店先运来20条,又运来80条,商店共运来多少条金鱼?(2)学校有80个和,其中有30个,有多少个?(3)妈妈买来30个,吃了一些,还剩下20个,吃了多少个?(4)汽车站有40辆,第一次开走20辆,第二次开走10辆,两次共开走多少辆?(5)小军今年7岁,再过几年就是10岁?(6)饲养场共养猫80只,有20只,10只,剩下的是,有多少只?二1.看图写算式.一共有()个人在台上表演?□+□=□在你喜欢的方法后面画1个√.3.用你喜欢的方法计算.50+30= 30+30= 20+70=80-50= 60-30= 90-20=4.比一比.60-40○2 20○40+20 70-60○1080+9○90 93-3○96 90○50+408+9<□ 88-8>□ 100-□○1005.请你给标有正确答案的叶子涂上你喜欢的颜色.6.哪两只蚂蚁可以住在同一个房子里?请你用相同的图形把它们圈出来.1) 70+10= 2) 80-20= 3) 130-30= 4) 80-20= 5) 150-30= 6) 190-20= 7) 50-20= 8) 60+20= 9) 90-90= 10) 90+80= 15) 20+20= 16) 60+80= 17) 110-60= 18) 50+30= 19) 40+20= 11) 10-10= 12) 170-80= 13) 50+10= 14) 30+30= 20) 110-60= 21) 190-20= 22) 160+40= 23) 90+40= 24) 160-0= 25) 130-40= 26) 130-10= 27) 20+120= 28) 60+40= 29) 80+60= 30) 170-80=31) 130+10= 32) 180-10= 33) 150+10= 34) 50-20= 35) 60+60= 36) 10-10= 37) 20+70= 38) 90+90= 39) 80+50= 40) 50+50= 41) 80+90= 42) 160+20= 43) 80+10= 44) 160+20= 45) 170-10=46) 140-90= 47) 90-0= 48) 90-80= 49) 90+30= 50) 40+70=51) 10+160= 52) 90-60= 53) 60-20= 54) 150-70= 55) 40+40= 56) 150-30= 57) 20+10= 58) 130-40= 59) 90+90= 60) 70+90=。

整十数加减整十数的口算题

整十数加减整十数的口算题

整十数加减整十数的口算题一、整十数加减整十数口算题1. 30 + 20 =- 解析:3个十加上2个十等于5个十,也就是50。

2. 40+10 =- 解析:4个十加1个十是5个十,结果为50。

3. 50 - 30=- 解析:5个十减去3个十,还剩2个十,即20。

4. 60 - 20=- 解析:6个十减去2个十,剩下4个十,所以是40。

5. 20+50 =- 解析:2个十与5个十相加,得到7个十,结果是70。

6. 70 - 40=- 解析:7个十减去4个十,等于3个十,为30。

7. 10+80 =- 解析:1个十加上8个十等于9个十,即90。

- 解析:9个十减去5个十,剩下4个十,是40。

9. 30+40 =- 解析:3个十和4个十相加,总共是7个十,答案为70。

10. 80 - 30=- 解析:8个十减去3个十,得到5个十,也就是50。

11. 50+30 =- 解析:5个十加3个十为8个十,结果是80。

12. 60 - 10=- 解析:6个十减去1个十,剩下5个十,为50。

13. 40+30 =- 解析:4个十与3个十相加,等于7个十,即70。

14. 70 - 20=- 解析:7个十减去2个十,还剩5个十,是50。

15. 20+60 =- 解析:2个十加上6个十,得到8个十,答案为80。

- 解析:8个十减去6个十,剩下2个十,即20。

17. 10+90 =- 解析:1个十加上9个十等于10个十,10个十就是100。

18. 100 - 50=- 解析:10个十减去5个十,剩下5个十,是50。

19. 30+60 =- 解析:3个十和6个十相加,总共是9个十,结果为90。

20. 90 - 70=- 解析:9个十减去7个十,得到2个十,也就是20。

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一年级下册整十数加减整十数、一位数
1. 50+20+30= 30+20+40= 40-20-10=
70-30-20= 50-20+10= 70+10-30=
2.
40元 20元 30元
(1)买一个书包和一本书一共用多少元?
(2)付给售货员100元钱,应找回多少元?
(3)你还能提出什么问题?并列算式解决。

3.用30、50、80三个数写出两个加法算式、两个减法算式.
___________ _____________
___________ _____________
整十数加、减整十数
1.口算.
70+7= 60-40= 32+8=
7+6= 15-5= 69-69=
21-20= 57-7= 4+5=
16-9= 30-20= 40+50=
2.选择算式.
30: 20+10 50-30 50-20 20+3
50: 50-10 20+30 56-6 70-50
40: 44-40 44-4 40+0 40+40
6: 56-6 66-6 66-60 26-20
3.下面哪个题错了,请你在()里改过来.
55-5=5() 1+10=11()
90-20=7() 10+3=40()
46-6=4() 4+60=100()
4.列式计算.
(1)一个加数是40,另一个加数是30,和是多少。

________________________________________________ (2)20与70的和是多少?
______________________________________________ (3)减数是60,被减数是80,差是多少?
___________________________________________
5.计算两步式题.
30+20+10= 70-20-30=
90-40-30= 80-30-30=
40+40+10= 40+10+50=
6.应用题.
1)商店先运来20条,又运来80条,商店共运来多少条金鱼?(2)学校有80个和,其中有30个,有多少个?
(3)妈妈买来30个,吃了一些,还剩下20个,吃了多少个?
(4)汽车站有40辆,第一次开走20辆,第二次开走10辆,两次共开走多少辆?
(5)小军今年7岁,再过几年就是10岁?
(6)饲养场共养猫80只,有20只,10只,剩下的是,
有多少只?

1.看图写算式.
一共有()个人在台上表演?□+□=□
在你喜欢的方法后面画1个√.
3.用你喜欢的方法计算.
50+30= 30+30= 20+70=
80-50= 60-30= 90-20=
4.比一比.
60-40○2 20○40+20 70-60○10
80+9○90 93-3○96 90○50+40
8+9<□ 88-8>□ 100-□○100
5.请你给标有正确答案的叶子涂上你喜欢的颜色.
6.哪两只蚂蚁可以住在同一个房子里?请你用相同的图形把它们圈出来.
1) 70+10= 2) 80-20= 3) 130-30= 4) 80-20= 5) 150-30= 6) 190-20= 7) 50-20= 8) 60+20= 9) 90-90= 10) 90+80= 15) 20+20= 16) 60+80= 17) 110-60= 18) 50+30= 19) 40+20= 11) 10-10= 12) 170-80= 13) 50+10= 14) 30+30= 20) 110-60= 21) 190-20= 22) 160+40= 23) 90+40= 24) 160-0= 25) 130-40= 26) 130-10= 27) 20+120= 28) 60+40= 29) 80+60= 30) 170-80=
31) 130+10= 32) 180-10= 33) 150+10= 34) 50-20= 35) 60+60= 36) 10-10= 37) 20+70= 38) 90+90= 39) 80+50= 40) 50+50= 41) 80+90= 42) 160+20= 43) 80+10= 44) 160+20= 45) 170-10=46) 140-90= 47) 90-0= 48) 90-80= 49) 90+30= 50) 40+70=
51) 10+160= 52) 90-60= 53) 60-20= 54) 150-70= 55) 40+40= 56) 150-30= 57) 20+10= 58) 130-40= 59) 90+90= 60) 70+90=。

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