GRADE 8 MATH JEOPARDY!

Like terms

100

combine like terms: 6a + 4a + 4b + 7

10a +4b+ 7

200

Combine like terms: k + 3n - 2n + 4k

5k + n

300

Combine like terms: 4(y + 9) - 3y

y - 36

400

Combine like terms and solve for x: x + 3x = 48

x = 12

500

Solve this expression: 14a + 4b + 7

Can't be solved; not an equation, and already in simplest terms

Index Laws

100

5³ x 5⁷

5¹⁰

200

(3³)²

3⁶

300

(3y²)²

3²y⁴

400

6⁰

1

500

15x⁴y⁵÷3xy³

5x³y²

Expand and Simplify

100

5(y+3)

5y+15

200

2x(y-2xy)

2xy-4x²y

300

-4x³yz(-5z+4xyz)

20x³yz² - 16x⁴y²z²

400

3(3x-2) + 2(2x)

13x - 6

500

x(x²y + 4) + x²(xy -7)

x³y + 4x + x³y - 7x²  = 2x³y + 4x - 7x²

Rearranging equations

100

9x-3 = 51

x = 6 

200

3(a-2) = 21

a = 9

300

(x/4)+ 7 = 17

x = 40

400

2 = 1.5 (2) + c

c = -1

500

find the value of b if: 

50 = 1.5 b +15

b = 33.33

Factorise

100

20x+ 35

5(4x+7)

200

-6st - 12

6(-st - 2)

300

-49gh²k³ +14 g²h²k

7gh²k(-7k² +2g)

400

ab²d³fe + 4 d⁴feb

bdef (abd² + 4 d³)

500

What is factorising the opposite of?

Expanding