Intermediate Test Prep Grade 7 Simplifying Numerical Expressions

before you start any problem, first determine what operation is being performed.

addition examples
Simplify:		Simplify:
5 + 5 = 10 16 + 9 = 25 45 + 55 = 100		-5 + 1 = -4 -16 + -15 = -31 -6 + 12 = 6

subtraction examples

Simplify:

5 - 5 = 0

16 - 2 = 14

29 - 22 = 7

-5 -7 = -12

-2 -1 = -3

-22 - 25 = -47

multiplication examples
Simplify:		Simplify:
5 x 7 = 35 15 x 15 = 225 3 x 29 = 87		- 7 x - 6 = 42 -5 x 4 = -20 -2 x -1 x -3 = -6

division examples
Simplify:		Simplify:
5 ÷ 1 = 5 36 ÷ 4 = 9 108 ÷ 9 = 12		7 ÷ -1 = -7 -56 ÷ -14 = 4 - 18 ÷ 2 = -9

exponent and root examples

Simplify: Simplify:

5² = 25
3³ = 27
2⁴ = 16

mixed operation examples

Simplify:

8² - (4 + 3) x 2 - 1 = 49

8² - 4 + 3 x 2 - 1 = 65

8² - 4 + 3 x (2 - 1) = 63

All "simplifying" a numerical expression really means is to solve what you are being asked to solve. It's that "simple"

Topic Index | Grade 7 Math | Intermediate Test Prep | StudyZone