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脱式计算能简算的要简算

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650÷25+26×99 =26+26x99 =26x(1+99) =26x100 =2600 如有帮助请采纳, 如对本题有疑问可追问,Good luck!

(382X26分之7+0.618X26分之7)X3又7分之5 =(382*7/26+0.618*7/26)*26/7 =382+0.618 =382.618 5分之4+25分之3X21分之5+5分之3X2 =4/5+3/25*5/21+3/5*2 =4/5+1/35+6/5 =28/35+1/35+42/35 =71/35 333X332332332-332X333333333 =333X333333333-333*...

0.4×125×25×0.8 =(0.4×25)×(125×0.8) =10×100=1000 1.25×(8+10) =1.25×8+1.25×10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8 =9000-8.8 =8991.2 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76) =8.3×3=24.9 9999×1001 =9999×(1000+1) =9999×...

脱式计算能简算的要简算是什么意思 意思是:脱式计算,能简算的要简算是什么意思 1、先观察算式有无简算的可能 2、如果有简算,那就用简算来做;没有,就直接计算

①0.75×4×0.25×4, =0.75×(4×0.25)×4, =0.75×1×4, =3 ②9.6+9.9×99, =9.6+980.1, =989.7; ③15.58÷8.2-0.72, =1.9-0.72, =1.18 ④4.536÷0.8÷14, =5.67÷14, =0.405 ⑤2.8×3.6+1.4×2.8, =(3.6+1.4)×2.8, =5×2.8, =14 ⑥6.3×10.1, =6.3×...

10.56×0.4×0.25 =10.56×(0.4×0.25) =10.56×0.1 =1.056 (1/2+1/3-1/4)÷1/2 =(1/2+1/3-1/4)×2 =1/2×2+1/3×2-1/4×2 =1+2/3-1/2 =1又1/6 1/3×1又1/2÷1又1/2÷1又1/2×3 =(1/3×3)×(1又1/2÷1又1/2)÷1又1/2 =1×1÷1又1/2 =2/3

125+125X79 =125X(1+79) =125X80 =10000 9000÷125÷8 =9000÷(125X8) =9000÷1000 =9

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