Question

6x 40 =(6x10)+(6x10)+(_x_)

Answer 1

`6*40 = (6*10) + (6*10) + (6*20)`

Explanation:

1.
`6*40=240`

2.
`6*10+6*10=120`

3.
`240=120+x`

4.
`240-120=120`

5.
`120=6*20`

6.
`6*20`

So, you have to fill in 6x20 in the gap.
Hope this helped!!

Answer 2

I think the answer is 6x20, beaches you simply do: 6x40

6x(10+10+20), so: 6x10+6x10+60x20