Question

50. 5(42) = 5(6 · 7) = 30 + 35 = 65
What is wrong with this problem, correct the mistake

Answer 1

see below

Explanation:

5(42)

= 5(6 · 7) The distributive property does not apply to multiplication, it only applies to addition and subtraction inside parenthesis.

We can change this to

5(40+2)

200 + 10

210