Math 7 Review

Circles

100

The exact circumference of a circle with a radius of 5

What is 10pi?

200

The exact area of a circle with a radius of 3

What is 9pi?

300

The exact area of a circle with a diameter of 8

What is 16pi?

400

The circumference, to the nearest tenth, of a circle with a radius of 10

What is 62.8?

500

The diameter of a circle with the circumference of 22pi

What is 22?

Integers

100

The sum of 3 and -3

What is 0?

200

The difference of 5 and -5

What is 10?

300

The product of 8 and -5

What is -40?

400

The quotient of 4 and -2 

What is -2?

500

The difference of 45 and -93?

What is 138?

Adding Expressions

100

Simplify:

(12x² + 3) + (3x²)

What is 15x² + 3?

200

Simplify:

(4x³ - 6) + (5x³ + 3)

What is 9x³ - 3?

300

Simplify:

(6a - 3a²) + (2a² - 3a - 8)

What is -a² + 3a - 8?

400

Simplify:

(10x⁴ -16) + (12 - 6x³ + 11x⁴)

What is 21x⁴ - 6x³ - 4?

500

Simplify:

(4y³ - 12y² + 8y) + (y³ + 8y² + 3y - 1)

What is 5y³ - 4y² + 11y - 1?

Subtracting Expressions

100

Simplify:

(4a + 1) - (4a)

What is 1?

200

Simplify:

(5 + 5n³) - (1 - 3n³)

What is 8n³ + 4?

300

Simplify:

(5q³ - 3) - (7q² +3q + 4)

What is 5q³ - 7q² - 3q - 7?

400

Simplify:

(8b³ + 8) - (6 - 7b³)

What is 15b³ + 2?

500

Simplify:

(14 + 12a³) - (17a⁴ + 15 - 5a³)

What is -17a⁴ + 17a³ - 1?

Ratios

100

5:4 = 20:__

What is 16?

200

10:3 = 30:__

What is 9?

300

55:60 = __:12

What is 11?

400

__:9 = 8:72

What is 1?

500

24:56 = 3:__

What is 7?