Grade 8 Math

Fractions

100

50/100÷ 100/200

0.025

200

1/2 x 2/5

2/10

300

1/4+3/6

9/12 or 3/4

400

5/9-1/3

2/9

500

1/4+3/5x(6/8-2/3)

36/120

Percent,Ratio, and Rate

100

What is 2.5% as a decimal

0.025

200

what is 73.25% as a Decimal

0.7325

300

What is the fromula for percent increase/decrease

change in amount/ Original amount x100

400

30% of a number is 12

40

500

The regular price of skatebroad is 74.99. It is on sale for 25% off what is the current price?

56.25

Integers

100

(-1)x(6)

-6

200

(-9)x(-7)

64

300

(-1)-4x8+-2

-29

400

What fraction repersents 0.75

3/4

500

If you bought a box of cerel for $4.15 and a some blueberries for $3.30 and then gave the cashier $10.00 how much would they return to you?

$2.55

Square Roots and squares

100

What is the square root of 9

3

200

What is 15 squared 

225

300

What is the square root of 16

4

400

What is the square root 256 

16

500

What is 29.97 squared 

898.2009

Linear equations

100

4x+5=17

X=12

200

2(x+5)=22

x=6

300

2x-3=5

x=4

400

8(x-6)=8

x=7

500

9x+12=102

X=10