Examples and Exercises

Example 2.8

Simplify the expressions:

  1. 4+3⋅7
  2. (4+3)⋅7


Example 2.9

Simplify:

  1. 18÷9⋅2
  2. 18⋅9÷2


Example 2.10

Simplify: 18÷6+4(5−2).


Example 2.11

Simplify: 5+2^3+3[6−3(4−2)].


Example 2.12

Simplify: 2^3+3^4÷3−5^2.


Try It 2.15

Simplify the expressions:

  1. 12−5⋅2
  2. (12−5)⋅2


Try It 2.16

Simplify the expressions:

  1. 8+3⋅9
  2. (8+3)⋅9


Try It 2.17

Simplify:

42÷7⋅3


Try It 2.18

Simplify:

12⋅3÷4


Try It 2.19

Simplify:

30÷5+10(3−2)


Try It 2.20

Simplify:

70÷10+4(6−2)


Try It 2.21

Simplify:

9+5^3−[4(9+3)]


Try It 2.22

Simplify:

7^2−2[4(5+1)]

Try It 2.23

Simplify:

3^2+2^4÷2+4^3


Try It 2.24

Simplify:

6^2−5^3÷5+8^2