Question

Martin multiplied 423 by 7 and said the product is 2,841.Do Martins calculations make sense?

Answer 1

No.

Explanation:

423×7= 2,961, therefore, the calculation is wrong.

Answer 2

No

Explanation:

It is given that Martin multiplied 423 by 7 and said the product is 2,841.

We need to check whether the calculation is correct or not.

`423* 7=(400+20+3)* 7`

Using distibutive property, we get

`423* 7=(400)7+(20)7+(3)7`

`423* 7=2800+140+21`

`423* 7=2961`

The product of 423 and 7 is 2961, which is not equal to 2,841. It means Martin calculation is incorrect.

Therefore, Martins calculation doesn't make sense.