五年级小数竖式计算

101.7 7 = 243.2 成=16.8 T8 = 15.6^24 =
0.138 +15 = 1.35 忌7 =
0.416 T2 = 3.64 -H52
=
91.2T.8 = 0.756 ".18 = 51.3 ".27 = 26 ".13 =
14.36 吃7Q8.33^6.2^ 1.7^0.03^ 32W Q
1.25+1.2^
2.41 ”.7Q 4.5X0.07= 6.3 ".09=
2.5X
3.6= 19.8T.3= 5 ".25= 0.76 -^0.4=
13.42 X4.73 = 9.65 X8.12
=
7.23 X1.2
=
6.3 X12
=
2.14X8.3 = 4.9 X 1.12
= 21.98 X2.31
=
0.24 X28.37
=
29.13 X3.14 = 9.88 X 11.21
=
5.5+11 = 7.5".5 =
16.9^0.13= 1.55T.9= 3.7X0.016
=
5.63 +
6.1
=
0.3^0.15= 0.5X0.12= 0.6 X 3
姓.6X3= 1.4 X
5=
0.1 X 0.01 = 0.35
X8=
7.35^7= 1 ".01 =
5.26+1.6 = 0.85 X
6.3 = 52.6 X0.252= 35+73 =
4、判断。

(1) 如果两个因数的积不是小数，那么这两个因数一定不是小数。

( )
(2) 一个不等于0的数的1.02倍一定比原数大。

()
(3) 因为12 X35=420，所以1.2X3.5=42.( )
(4) 在表示近似数时，5.0也可以写成5。

()
(5) 整数乘法的交换律、结合律和分配律，对于小数乘法同样适用。

( )
(6) 0.25X9.9=0.25 X (10-1 ) =0.25 X 10-0.25。

( )
(7) 4.10与4.1大小相等，表示意义也相同。

()
(8) 3.994精确到百分位约是4.00.()
(9) 一个数(0除外)除以小数，商一定比这个数大。

( )
(10) 两个数相除的商是0.9,被除数不变，除数扩大10倍，商是9.()
5、把下列各式中的乘积点上小数点，使等式成立。

9.36 X2.7=25272 0.89 X6.43=57227
5 P.25= 0.76^0.4= 2.3
6 X0.22= 2.8 X4.58=
3.57^
4.2= 82.8 T6= 45 X2.46= 3.6^0.24= 382.5 -M5= 6.4 X
5.48= 13.42 X4.73 = 9.65X8.12 =\ 7.23X 1.2 =
6.3X 12 = 2.14 X8.3 = 4.9 X 1.12 =
28 X32 = 54 X25 = 48 X 61 = 23 X37= 46 X58= 326 X52= 45 X12 = 33 X12= 32 X69= 0.828 + 36 97.2 + 24 7.65 + 0.85
97.2 + 5.4 8.4 +24 18 +48 23 +184 7.65 +25 0.98 +35 2.525 +25 84 76
67.5+15 230.4 部21.24 + 36 0.736 +23 43.5+12 35.21 +7 39.6 +24 6.21 +0.03 85.44 +16 42.84 +7 101.7 F 67.5+15
51.3+ 0.27 91.2 + 3.8 0.756 姓.18 0.66 + 0.3
11.97 +1.5 69.6+2.9 38.4+ 0.8 15 姓.06 0.828 + 36 97.2 + 24 7.65 + 0.85 12.6 + 0.28
8.4+ 24 18 T8 23 +184 7.65 +25
0.98 + 35 2.525 +25 84 76 140.7 +3 82.8 +
72
1.56 +
2.4= 1.44 姓.015= 2.898 姓.18= 85.44 +16
21.24 +36 0.736 +23 43.5 +12 35.21 +7 39.6 +24 6.21 姓.03 85.44 +16 42.84 +7 101.7 F 67.5 +15 230.4 % 21.24 +36
0.756 姓.18 0.66 姓.3 11.97 +1.5 69.6 +2.9 38.4+ 0.8 15 姓.06 1.44 + 0.015= 2.898 +0.18= 1.44 + 0.015= 2.898 姓.18= 0.328 而= 3.51 T=
600 -H50= 42 X0.16= 84 X0.25= 0.36 X0.9=
2.4+3= 20X0.5= 0.8X6= 1000 X0.09=
1.35^27= 58 X0.32= 1.08 X52= 8.5X0.54= 5.62 X
2.4= 0.28 X0.16= 1.06 X0.82= 0.06X0.75= 0.41 X2.01
=
0.63X0.12= 3.5X2.01 1.26 ".84=
1.45X6.5+0.55 X6.5 6.12X99+6.12 5.9X 101-5.9
8+ ( ) =0.8
25.8+ ( ) =0.258 452 穴 )=45.2 70 穴 )=0.7
800.9 -K )=80.09 360 -K )=0.36 6.54X1.04= 0.522 ".18=
33 -^7.5= 10^0.8= 0.6^0.015= 0.532 ".4=
16.43+3.6= 21.5-20.83= 5.7+4.33= 20.1-6.9= 0.65+19.5= 0.29X3.18 (保两) 4.48 忌.8+1.5
35.4-9.6 + (2.65-1.05 ) 6.3 X【(0.9+1.8) +4.5】
以下简便运算|
12.5X32 X0.25 29.4+1.72+3.56 5.17-1.8-3.2
0.312
X12=
42X0.16= 84 X0.25= 58 X0.32= 1.08X52= 54 X0.47= 420 X3.5= 9.3 -100 X1000=
2871 ".33= 50-16.66= 6
X0.73=
3.82 X0.45=
3.1 X
4.05=
1、用竖式计算0.396 +1.2= 0.522 ".18=
0.756 姓.36=
7.54 ".26= 91.2 ".024=
7.15X
22=
90.75 +3.3=
6.4X 2.5= 4.48
X4.4=
5.25X 15 = 4.6 X
0.6=
35.4 X 4.2= 0.042 X0.54 = 0.76 X
0.32
0.25
X0.046=
0.45
X0.73= 0.43
X0.28=
2.52
X3.4=
1.08
X25=
0.12X 0.5X 0.16 = （保留两位小
数）
3.25
X9.04=
（用除法验
算）
8.9X
3.08 X0.43= 1.5 X26.7= 5.22 +29= 0.05=
2.5X 7.1 X4 = 16.12X 99 + 16.12= 18.72
+3.6=
5.2X 0.9+ 0.9= 7.28 X99+7.28= 4.3 X50
X0.2=
2.7X 5.4X
3.6X9.85-5.6 = 8.05 X3.4+7.6 = 3.9=
2.8 X0.5+1.58= 4.85 + 0.35 + 1.4=
6.58 X 4.5 X
0.9=
8.7 X 17.4 - 8.7 X 7.4= (1.25 - 0.125) X8=
32 + 4.9-0.9= 4.8-4.8 X 0.5 = 4.8X 100.1 =
9.5X 101
=
0.68 + (5.2 -3.5 ) X 1.25= 40.5 + 0.81 X 0.18=
4.8 X (15 + 2.4) 6.81+6.81 X
99= 0.25 X185 X40=
4.4X 0.8-3.4X 0.8= (9.37+9 . 37+9 . 37+9 37) X 2. 5= 4. 2.X 1. + 1.X 1.75= 2.37 X6.3+2.37 X3.7= 2.5 X1.25
X0.32=
6.81+6.81 X99 = 0.25 X185 X40= (8 X5.27) X 1.25
=
6.8X0.75 姓.5 = 1.53+23.4 +
7.2=
0.37X 8.4 = 3.14 X2.8=
0.15X 2.34
=
3.75-0.125 2 75= 13.5X
0.98= 12.5X 8.8
=
9.5 X
99=
46 X0.33+54 X0.33= 1.2X1.4 =
0.85 X 1.12
0.86 X5.4= 40+14 = 45.5+38 = =
7.2+2.1 = 3.87 7= 146.4 +13 = 0.382 X0.13
=
5.634.1 = 2.84 X0.03= 2
6.37 T1 = 32 -M2
= 2.84X0.03 = 4.8 忌3= 0.382 X0.13
4.2F5 =
=
117 +18= 9.48+ 1.36= 36.9 +18= 26.55 十
59=
四、单位换算(12%
0.24 米=( )厘米0.09吨=( )千克
8.54平方分米=()平方厘米 3.64 =()米
140平方厘米:=()平方分米785米-()千米
23分米=()米60克=()千克
2.06千克=( )克3元4角=( )元
15厘米=()米7吨60千克=( )吨
五、脱式计算(能简算的要用简便方法计算)( 24%
3.68+ 7.56-2.68 7.85- (2.34-0.15) 35.6- 1.8- 15.6 - 7.2
15.89 + (6.75-5.89) 5.17 - 1.8-3.2
13.75 - (6.48 + 3.75)
2、脱式计算（能简算的要简算）0.125 X0.25X8 X4
2、脱式计算（能简算的要简算）
0.25 X 0.06 0.125
X0.4
0.64 X
0.75
14.5 X
0.28
0.125 X32 0.78X
101
3.26 X5.7 — 32.6
X0.07
10.32 +2 12.8+4 37.8 +
9
10.32 +2.4
4.8X 0.9+0.48 (4-0.4) X2.5 0.544 ".025=
65 + 52 11.2 + 0.05 9+ 0.18 1.8+20
7 + 0.56 7.3+ 0.25 0.798 姓.38 9.8 +1.4
2.52+2.4 60 T.8 72.8 + 0.8 0.315 +1.5
31 +25 13+20 0.092 +23 72.8 +8
2.
0.315 姓.15 96 + 64 176 +25 11.4 + 0.24
08 +26 36 T8 96 姓.64 7.56+4.2
1.2X 1.4= 0.37 X8.4 = 3.14X
2.8= 0.85X 1.12
0.86 X 5.4= 0.15X 2.34 = 40 +14 = 26.37 +31
45.5 +38 = 1560 +35 = 4.8+2.3 = 1.55 + 3.9=
2.84 X0.03 = 4.8+23 = 0.382 X0.13 = 4.2+4.5=
1.64 +
2.35= 8.65-6.31 = 28.448 +14= 10.88 +34= 0.58 X250= 12.5 +
3.6= 10 - 7.64= 1.86 X 7= 13.88 - 6.29= 926 X0.15= 8 700= 100.2 - 2.28 26.3+ 7.93= 23 X7.06= 44 F （精确到百分位）
18 +24= 43.68 +26= 25.3 +0.88= 124.8 ".24=
0.1575 +3.15= 0.612 +1.8= 16.787 姓.28 （保留一位小
数）
2.36 X 0.22 2.8 X 4.58
3.57+
4.2 45 X2.46
9.62-0.158 （得数保留两位小数）14.2+11 （商用循环小数表示）203.5 +11 =
25.24= 34.5 +15= 5.6* 1.8+12=
1.8+12= 7.83 样 4.08^8= 0.54 布=
6.3+14= 72 +15= 14.21 么24 +15=
1.26+18= 43.5 +29= 18.9 切= 1.35+15=
5.98 姓.23= 19.76 十5.2=
10.8 -M.5=
8.84 +1.7= 6.21 ".03= 1.89^0.54=
328
+16=
1.35 T7= 7.65 姓.85= 1
2.6 ".28= 62.心.6= 0.544 ".16= 1.44+1.8= 11.7-2.6= 19.4+12=
21 +1.4=
2.1 姓.4= 2.56 T.2= 50.18 T8.6= 4.68 以5=。