五年级上册数学题
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方程
13+x=28.5 2.4x=26.4 4x+13=365 30x+15x=22.5 96÷6+4x=56 3x—2╳7=40
ⅹ+36=67 12÷ⅹ=0.3 (X –3)÷2 = 7.5 4X - 3×9 = 29 2X - 7.5 = 8.5
9.8X + X = 75.6 7(5X + 6) = 91 8(X - 6.2) = 41.6 42X + 25X =134 7.9X – X = 8.97 13(X + 5 ) = 169 7(2X-6)=84 5(X-8)=3X 4X+8=6X-4 7.4X-3.9=4.8X+11.7 简算
5.12+2.54+4.88= 12.5×17.8×0.8= 9.9×2.5= 9.4×5.8+10.6×5.8= 0.125×0.32×0.25= 9.6+9.6×99= 2.8×7.6+1.4×2.8 +2.8=
6.3×10.1= 0.25×3.2×12.5= 12.5×9.7?12.5×8.7=
3.7×91.6+6.3×91.6= 16.84÷40÷0.25= 12.5×0.4×2.5×8= 9.5×101=
4.2×7.8+2.2×4.2=
2.55×7.1+2.45×7.1= 12.5×(0.7×0.8) 6.25×1.02 1.25×99 12.5×32×2.5
4.12-1.78-1.22 4.2÷0.7÷6 7.5+2.5-7.5+2.5 7.325-3.29-3.325 7.325-(
5.325+1.7)
7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8 0.25×0.28
0.125×3.2×2.5 35×40.2 0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5 3.5×101-3.5
3.5×9.9+3.5×0.1 3.5×2.7+35×0.73 3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6
4.9÷3.5 7÷0.25÷4 7÷0.125 7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55 3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403 3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36 12.7-(3.7+0.84)36.54-1.76-4.54 0.25×0.73×4 7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×4 1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.35 0.8×(4.3×1.25)
3.12+3.12×99 28.6×101-28.6 (
4.23+6.17)×0.8 0.86×1
5.7-0.86×14.7
2.4×102 14-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5
脱式计算
(2.65+2.77)÷(1.98-0.98)= 3.7×91.6+6.3×91.6= 0.45×12×0.2=
6.2×2.1-2.12.8-2.8×0.15= 2.8×1.43+0.57= 10-6.06+8.5=
6×0.25×1.8= 144÷3.6+27.2= 0.87×3.16+4.64= 6.8×
0.75÷0.5=
13.75÷0.125–2.75= 53+23.4÷7.2= 2.881÷0.43-0.24×3.5=
28-(3.4+1.25×2.4)= (31.8+3.2×4)÷5= 31.5×4÷(6+3)=
0.64×25×7.8+2.2= 2÷2.5+2.5÷2= 194-64.8÷1.8×0.9= 36.72÷4.25
×9.9=
5180-705×6= 24÷2.4-2.5×0.8= 3.416÷(0.016×35)= 30.8÷[14-(9.85+
1.07)]
[60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15]
28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕(31.8+3.2×4)÷5 31.5×4÷(6+3) 0.64×25×7.8+2.2 2÷2.5+2.5÷2
194-64.8÷1.8×0.9 36.72÷4.25×9.9 5180-705×6 24÷2.4-2.5×0.8
(4121+2389)÷7 671×15-974 469×12+1492 405×(3213-3189)
3.416÷(0.016×35) 0.8×[(10-6.76)÷1.2] 19.4×6.1×2.3
5.67×0.2-0.62 18.1×0.92+3.93 0.0430.24+0.875 0.4×0.7×0.25
0.75×102 100-56.23 0.78+5.436+1 4.07×0.86+9.12.5
30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5
20×[(2.44-1.8)÷0.4+0.15] 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1
777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕
竖式计算
8.08-2.68= 5.546+29.38=17.04×0.26 =8.35×3.5=
18.2 –9.02 12.6 ÷ 35 15 + 6.92
0.36 × 35 4.3 × 0.28 3. 16 × 0.17 5.1 × 16
2.72 × 2.5 0.37 × 2.4 5.3 × 0.32 9.4 × 2.3
1.8 ÷ 1.2 20.64 ÷ 24 24 ÷ 16 23÷184
0.828 ÷ 36 97.2 ÷ 24 7.65 ÷ 0.85 12.6 ÷ 0.28
8.61 ÷ 2.1 58.75 ÷ 0.25 220.3 ÷ 0.7 58.8 ÷ 0.28
(保留一位小数)
0.43×0.29≈52.6×0.23≈ 4.58×0.37≈32.3 × 5.2
(保留两位小数)
4.3×8.14≈27.6×0.45≈27.6×0.45≈
20÷12≈ 2.9×1.8≈ 5.08×0.25≈
(保留三位小数)
2.5÷0.7= 2.5÷0.7=
3.25×9.04=
(用循环小数表示商)
36.8÷16≈10.1÷3.3≈15.3÷11≈0.78÷1≈
用方程解决问题
1、197路公共汽车上原有乘客50名,车到站后有一些人下车,又有7人上车,这时车上比原来少23人。问有多少人下车?(5分)
2、根据统计,2004年亚洲人口约有39亿,比欧洲人口的5倍还多4亿,2004年欧洲人口有多少亿?(5分)
3、一头牛和一头大象共重5445千克,大象的体重相当于8头牛的体重。这头牛和大象的体重各是多少千克?(6分)
4、小苟花了7元钱买了面额为6角和8角的邮票,两种邮票的数量相同,小苟买的两种邮票各有多少枚?(6分)
5、长江服装厂有布1200米,做了150套大人服装,每套用布5米。剩下的布料做小孩子衣服,每套用布3米,可以做小孩衣服多少套?(6分)