Grd 7 Math Chapter 2 Skibidi Jibbidy Revision

EVALUATE IT

100

Evaluate:

(x+8) when x=12

Answer: 20

200

Evaluate:

3m-7 when m=6

11

300

Find -2x + 5 when x = -4.

13

400

Find a² - 3b when a = -5 and b = 4.

13

500

Find 2x² - 3y + 4 when x = -3 and y = -2.

28

DISTRIBUTE IT

100

Complete: 5(x + 3) = 5x + ?

15

200

Distribute: -4(x + 6)

-4x - 24

300

Distribute: 7(2x - 5)

14x - 35

400

Distribute: -3(4x - 7)

-12x + 21

500

Factor: 24x - 18

6(4x - 3)

SIMPLIFY IT

100

Simplify: 6x + 5x

11x

200

Simplify: 8a - 3a + 4

5a + 4

300

4x + 7y - 9x

-5x + 7y

400

3m + 2n - 8 + 5m - 6n

8m - 4n - 8

500

Simplify: 5(2x - 3) - 4x + 7

6x - 8

TRANSLATE IT

100

Write an algebraic expression for: 8 more than x

x + 8

200

Write an algebraic expression for: 5 times a number n

5n

300

Write an algebraic expression for: the quotient of x and 6

x / 6 or x divided by 6

400

Write an algebraic expression for: 7 less than three times a number m

3m - 7

500

Write an algebraic expression for: four times the difference of a number x and 5

4(x - 5)

SCIENTIZE IT

100

Complete: 7,200 = 7.2 x 10^?

3

200

Write 45,000 in scientific notation.

4.5 x 10⁴

300

Write 0.00072 in scientific notation.

7.2 x 10^-4

400

Write 6.31 x 10⁵ in standard form.

631,000

500

Write 8.04 x 10^-6 in standard form.

0.00000804