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脱式计算能简便的要简便2.6×5点3+4.7×2.6.

2.6*(5.3+4.7)=26

3.25×4.7-7.8 =15.275-7.8 =7.475 没有简便方法

(1)33.5-5.3-4.7+16.5,=(33.5+16.5)-(5.3+4.7),=50-10,=40;(2)9900÷25÷4,=9900÷(25×4),=9900÷100,=99;(3)1÷( 3 5 + 3 10 ),=1÷ 9 10 ,= 10 9 ;(4)24×( 2 3 + 1 6 - 3 8 ),=24× 2 3 +24× 1 6 -24× 3 8 ,=16+4-9...

6.8*4.7+5.3*(10-3.2) =6.8*4.7+5.3*6.8 =6.8*(4.7+5.3) =6.8*10 =68

4.7÷0.25+5.3÷0.25 =4.7×4+5.3×4 =4×(4.7+5.3) =4×10 =40 ~回答完毕~ ~结果仅供参考~ ~\(^o^)/~祝学习进步~~~

4.7+4.8+4.9+5.0+5.1+5.2+5.3 =(4.7+5.3)+(4.8+5.2)+(4.9+5.1)+5.0 =10+10+10+5 =35

(1)45×(67+43)=45×110=4950;(2)3.68÷4.6+6.32=0.8+6.32=7.12;(3)72÷59×514=72×95×514=94;(4)1.8×(4.7-3.87÷0.9)=1.8×(4.7-4.3)=1.8×0.4=0.72;(5)15+(14-310×23)=15+(14-15)=15-15+14=14;(6)36÷[(56-13)×3]=36÷[12×...

4.71×3.2+4.71×7.8-4.71 =4.71x(3.2+7.8-1) =4.71x10 =47.1

4、7x6/5+5、3÷(5/6) =4、7x6/5+5、3x6/5 =(4、7+5、3)x6/5 =10x6/5 =12

15.5 5.3-5.5 4.7 =15.5-5.5+4.7+5.3 =10+10 =20

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