Question

这5个题简便计算。

Answer 1

①:(3-9/5)*99+6/5 ②1.25*32*0.25 ③3.25*36+6.75*36第四题太模糊⑤1.25*（3.56*8）
=6/5*99+6/5 =1.25*8*4*0.25 =（3.25+6.75）*36 =1.25*8*3.56
=6/5*(99+1) =1*1 =360 =35.6
=6/5*100 =1
=120

Answer 2

1、
原式
=（3-1.8)x99+1.2
=1.2x99+1.2
=1.2x(99+1)
=1.2x100
=120

2、
原式
=1.25x(8x4)x0.25
=(1.25x8)x(4x0.25)
=10x1
=10

3、
原式
=（3.25+6.75）x36
=10x36
=360

4、
看不清楚。

5、
原式
=1.25x8x3.56
=10x3.56
=35.6

Answer 3

追答

如图，第四个最后应该是除以7，你看看是不是你抄错了

Answer 4

Answer 5

追答