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能简算则简算 12.45%9.62+0.37 0.83+0.9+...

(1)12.45-9.62+0.37,=2.83+0.37=3.2;(2)0.83+0.9+0.1+0.17,=(0.83+0.17)+(0.9+0.1),=1+1,=2;(3)6.32-(5.26-3.68),=6.32-1.58,=4.74;(4)35×8+35×11+35,=35×(8+11+1),=35×20,=700;(5)32×125×25,=(4×8)×125×25,...

1.3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14 ...

=5×12×9 =60×9 =540

2012年1月28日星期六一、口算题小数加法:0.3+1.5=2.5+9.8=7.6+1.3=4.4+5.7=2.3+7.7=5.7+3.1=7.69+2.31=9.16+2.64=5.68+12....

0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0...

=45×12+12×58-3×12=12×(45+58-3)=12×100=1200

(4)8.9×1.25-0.9×1.25 =1.25(8.9-0.9)=10...=0.45+4.55+6.37=5+6.37=11.37(10)28×12...⑹、运用乘法分配律的减法进行简算。12×5.9-5.9×...

2、脱式计算(能简算的要简算)2.5×7.1×4 16...12.5×0.4×2.5×8 0.87×3.16+4.64 9.5×...小时行73千米,经过几小时两车还相距45千米?9.少先...

12.45-1.96-0.8 =12.45-2+0.04-1+0.2 =9.45+0.24 =9.69

45.55-(6.82+15.55) 34.52-17.87-12.23 ...194-64.8÷1.8×0.9 36.72÷4.25×9.9 5180-...五年级下册的脱式和简算题100道带答案 56 简便计算...

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