三点六乘五点八加十点八乘一点四的简便方法怎么计算？

Question

如题所述

Answer 1

三点六乘五点八加十点八乘一点四的简便方法怎么计算？

三点六乘五点八加十点八乘一点四的简便方法怎么计算
三点六乘五点八加十点八乘一点四
=3.6*5.8+3.6*3*1.4
=3.6*（5.8+4.2）
=3.6*10
=38

零点八乘五点四乘0.125用简便方法计算

0.8*0.125 *5.4=0.1*5.4=0.54

88点八乘零点九减33点三乘一点四简便计算

88.8*0.9-33.3*1.4
=11.1*(7.2+4.2)
=11.1*11.4
=(10+1+0.1)*11.4
=114+11.4+1.14
=126.54

三点六乘九点八乘三点六乘十点二能简算吗

不能简算。3.6X9.8X3.6X10.2
=3.6X3.6X(10-0.2)X(10+0.2)
=12.96X(100-0.04)
=1296-0.5184
=1295.4816

4.68乘以十五点二加46点八乘以八点四八用简便方法怎么算

4.68×15.2+46.8×8.48
=4.68×15.2+4.68×84.8
=4.68×（15.2+84.8）
=4.68×100
=468

六点八加1.25乘六点八乘八的简便方法怎么算

6.8+1.25×6.8×8
=6.8×（1+1.25×8）
=6.8×11
=6.8×（10+1）
=6.8×10+6.8×1
=68+6.8
=74.8

八点六加一点四乘以两点六的简便方法怎样计算

8.6+1.4*2.6=8.6+（3-0.4）*1.4=8.6+3*1.4-0.4*1.4=8.6+4.2-0.56=12.24

六点八乘零点四一加零点五九乘三点四乘二的简便方法

6.8×0.41+0.59×3.4×2
=6.8×0.41+0.59×6.8
=6.8×(0.41+0.59)
=6.8×1
=6.8

三点六乘一点九加36乘零点八一的简便方法该怎么计算

原式
=3.6x1.9+36x0.81
=3.6x1.9+3.6x8.1
=3.6x(1.9+8.1)
=3.6x10
=36

35点六乘于零点八加三点五六乘以十二简便方法计算

35.6*0.8＋3.56*12＝3.56*8＋3.56*12＝3.56（12＋8）＝3.56*20＝71.2