Are You Ready- Chapter 10

Evaluate the expression:

3(8) - 15

Mathematical Equivalence

ON

Answer explanation

1. Parentheses- mulltiply 3 and 8

2. subtract 15 from 24

4(12) + 11

Mathematical Equivalence

ON

3(7) - 4(2)

Mathematical Equivalence

ON

Answer explanation

1. multiple parentheses- 3 times 7 and 4 times 2

2. subtract 8 from 21

4(2+3) - 12

Mathematical Equivalence

ON

Answer explanation

1. add numbers inside parentheses

2. multiply 4 times the sum of 2+3

3. subtract 12 from 20

9(14-5) - 42

Mathematical Equivalence

ON

7(8) - 5(8)

Mathematical Equivalence

ON

Answer explanation

1. Complete parenthesis- 7x8 and 5x8

2. Subtract 40 from 56