五年级课前三分钟训练题
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五年级计算训练
一、口算
0.8×1.1= 7.2+12.8= 46.7-3.8= 4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4=
0.62-0.32= 1.4×0.5= 0.75×100= 0.02×0.5= 3.6÷0.3= 6.3÷7= 5.6÷100= 0.75÷0.25=
0.125×8= 4.8÷0.3= 0.96÷2= 0.56÷28=
0.36÷0.4= 0.64÷0.8= 0.72÷3.6= 3.6÷24=
12.8÷4= 5.2÷13= 12.5÷5= 10÷20= 24÷15= 8.65×10= 0.35×0.6= 4.95×1000=
6.9×0.1= 0.4×0.5= 2.4÷0.8= 10.8÷9=
9.6÷0.8= 0.325×100= 56÷0.7= 125×4= 3.28×0.1= 7.2×0.1= 0.01×0.1= 0.25×0.4=
1.6÷0.8= 1÷
2.5= 1.25×0.8=
3.2÷0.04= 0÷1.7= (1.2+8.8)×0.4= 100-63= 0.65+
4.35=
4.9÷0.7= 2.87-0.49= 530+270= 3.5-0.2= 4×0.25= 25×12= 135÷0.5= 0.51÷17=
5.2÷1.3= 1.6×0.4= 1÷5= 7.8 + 3.8 =
6÷2= 0.87-0.47= 17×40= 2.8×0.4=
0.32×500= 0.65+4.35= 3.5×200= 4×0.25=
0.36+1.54= 420÷60= 2 + 4.9 = 3 - 2.3 = 3.4 - 1.2= 4.9×0.7= 0.4×0.8= 100÷2 =
二、简便计算
3.6×2.5+7.5×3.6 0.125×32 6.5×102 3.25×99+3.258×25×1.25×16 4.04×250 45.55-(6.82+15.55) 3.2×99+3.2 489×101-489
3.6×2.5+7.5×3.6
4.8×39+61×4.8 0.125×32 34.52-17.87-12.23 2.5×56+4.5×56 6.5×102
4.57+3.17+3.43+5.83 4.6×56+48×4.6-4.6 3.25×99+3.250.125×3.2×2.50.125×72
3.8×10.18×25×1.25×16 4.04×250
3.2×99+3.2 4.8×39+61×4.8 5×7.1×4
34.52-17.87-12.23 (1.9-1.9×0.9)÷(3.8-2.8)
8.7×2.6+6.4×8.7+8.7 47.05×23.7+47.05×76.3
12.81-(1.5+7.81) 12.25-3.1+0.85-6. 9.5×101 2.65×1.7+1.35×1.79.5×99 7.69×101 4.3×50×0.2 5.2×0.9+0.9 7.28×99+7.28
26×15.7+15.7×24 16.12×99+16.12 12.5×8.8
(2.275 +0.625)×0.28 7.09×10.8-0.8×7.09
56.5×99+56.5 32+4.9-0.9 8.7 × 17.4 - 8.7 × 7.4
4.8-4.8×0.5 (1.25-0.125)×8 6.81+6.81×99 0.25×185×40 4.4×0.8-3.4×0.846×0.33+54×0.33 (9.37+9.37+9.37+9.37)× 2.5 (2.275 +0.625)×0.28 2.37×6.3+2.37×3.7 2.5×1.25×0.32 0.25×39+0.25 12.5×0.4×2.5×8
三、解方程:
54-X=24 7X=49 126÷X=42
2.4X=26.4 7.5x-3x=18 x+
3.86=5.46
24x+6x=63.6 5.6x+4.4x=5.2 4x+3×0.7=6.5 17.89-x=12.89 40.8+x=57.3 x-3.25=16
2x+0.82=8.2 3+0.5x=7 7.8÷x=2.6
80x÷4=12 5-0.9x=2.75 2x+0.4x=48
35x+13x=9.6 0.52×5-4x=0.6 20.5-4x=8.1
0.7(x+0.9)=42 1.3x+2.4×3=12.4 x+3.86=5.46 2x +5 = 40 15x+6x = 168 5x+1.5 = 4.5 4.2 × 3—3x = 5.1 20.5-4x=8.1 3.6x÷1.2=9.75