Question

Calculate 400- 640 divide by 8 + 70 divide by 5

Answer 1

Solution:

According to the hierarchy of algebraic operations and applying the associative property, we get that:

$400-640\div8+70\div5\text{ = 400-(640}\div8\text{)+(70}\div5\text{)}$

this is equivalent to:

$\text{ 400-(640}\div8\text{)+(70}\div5\text{)}=400-80+14\text{ =334}$

So that, we can conclude that the correct answer is:

$334$