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3.375加0.625的和乘3.32乘25简便计算

(3.375+0.625)× 3.32 × 25 =4x25×3.32 =100×3.32 =332

4*25*3+75=375 前面算出来是整数100,后面都比较简单的。

原式 =0.6×(3.625+4.375)×1.25 =0.6×8×1.25 =0.6×10 =6

原式=3/4x3/8+0.75+62.5%x75%=0.75x0.375+0.75+0.625x0.75=0.75x(0.375+0.625)+0.75=0.75x1+0.75=0.75+0.75=1.5或者=3/4x3/8+0.75+62.5%x75%=0.75x0.375+0.75+0.625x0.75=0.75x(0.375+1+0.625)=0.75x2=1.5供参考。

15

0.375×3/7+5/8×3/7 =0.375×3/7+0.625×3/7 =3/7×(0.375+0.625) =3/7×1 =3/7

8分之7乘以0.375加8分之3除以九分之8 =(7/8)x0.375+(3/8)/ (8/9) =(7/8)x(3/8)+(3/8)x (9/8) =(21+27)/64 =48/64 =3/4

原式 =3.375x0.97+0.97x6.625 =(3.375+6.625)x0.97 =10x0.97 =9.7 供参考。

三又四分之十五乘一点二五加37.5乘0.975,减375% =3+3.75x1.25+37.5x0.975-3.75 =3+3.75x(1.25+9.75-1) =3+3.75x10 =3+37.5 =40.5 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,...

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