Question

Drag the simplified value into the box to match each expression.

18−42+5⋅2

92+4⋅7−3

52−4+7⋅3

answers: 1,2,12,24,42,106

Answer 1

The answers are as follows: 12 106 42

Explanation:

Given:
`$ 18 - 4^2 + 5 * 2 $`

Using BODMAS rule (Bracket, Of, Division, Multiplication, Addition and Subtraction) we would calculate
`$ 18 - 4^2 $` separately and
`$ 5 * 2 $` separately and add them. So we have
`$ 18 - 16 + 10 = 2 + 10 =12 $`.

Now for the second question:
`$ 9^2 + 4 * 7 - 3 $`. we would get
`$ 81 + 28 - 3 = 106 $`

Next,
`$ 5^2 - 4 + 7 * 3 $`. This could be written as:
`$ 25 - 4 + 21 = 42 $`. Hence the answers.