Question

三点八四乘以九点六加零点九六乘以六十一点六用简便方法怎麼计算?

Answer 1

三点八四乘以九点六加零点九六乘以六十一点六用简便方法怎麼计算?

原式
=3.84x9.6+0.96x61.6
=3.84x9.6+0.96x10x6.16
=3.84x9.6+9.6x6.16
=(3.84+6.16)x9.6
=10x9.6
=96

二点二乘以九点九加上六点六，乘以六第七，用简便方法计算。

2.2×9.9+6.6×6.7
=2.2×3×3.3+6.6×6.7
=6.6×3.3+6.6×6.7
=6.6×(3.3+6.7)
=6.6×10
=66

16点儿九六乘以三点儿九减39乘以零点儿696的简便方法

16.96*3.9-39*0.696
=16.96*3.9-3.9*6.96
=3.9（16.96-6.96）
=3.9*10
=39

0.9999乘以零点六加上零点1111乘以三点六简便方法

0.9999*0.6+0.1111*3.6
=0.1111*9*0.6+0.1111*3.6
=0.1111*（5.4+3.6）
=0.9999

十一点八乘四十三减八百六十乘零点零九用简便方法怎麼计算

原式=11.8×43-86×0.9
=11.8×43-43×1.8
=43×（11.8-1.8）
=43×10
=430

六点九乘九点六加一点四乘六点九点六点九的简便用算方法

6.9×9.6+1.4×6.9-6.9
=6.9×（9.6+1.4-1）
=6.9×10
=69

简便方法计算0.00695乘以2500 6点九六十九点5×0点二四 5点1×6点九

0.00695*2500+69.5*0.24+5.1*69.5
=6.95*25+6.95*24+6.95*51
=6.95*（25+24+51）
=6.95*100
=695

29点五乘一点六加上一点五乘以十六用简便方法怎麼算

29.5*1.6+1.5*16=29.5*1.6+15*1.6=1.6*(29.5+15)=1.6*44.5=712

一点九九六乘以五十五加四点五乘以十九点九六的简单方法计算

把小数点移位就可以了1.996*55+4.5*19.96=19.96*5.5+4.5*19.96=（5.5+4.5）*19.96=199.6

零点六五乘以六点四减六点五乘以零点五四加六十五乘以百分之九怎样用简便方法？

0.65×6.4-6.5×0.54+65×0.09
=6.5×（0.64-0.54+0.9）
=6.5×1.0
=6.5