Rational Numbers Grade 8

Fractions and decimals

100

Compare these rational fractions using >, <, or =

5 1/2    5 2/3

5 1/2  <  5 2/3

200

 Identify is each nombre is rational or irrational

1. 0.24

2. pi

3. 8.hat3

4. 0.101100111000...

1. rationnel 

2. irrationnel

3. rationnel 

4. irrationnel

300

Convertir cette fraction en nombre décimal.

6 1/10

6.1

400

Convertir ce nombre décimal en fraction. simplifiez et réduire si possible. Convert this decimal number into a fraction. Simplify is possible.

-0.6

-3/5

500

Convert this decimal into a fraction. Simplify is possible.

0.hat21

7/33

Add and subtract

100

Add.

-12.4 + 8.39

-4.01

200

Add.

2/3 + 3/4

1 5/12

300

Add.

-3 1/3 + 2 1/2

-5/6

400

Subtract.

-62,57 - (-12,29)

-50,28

500

Subtract.

-5/6-(-4/5)

-1/30

Multiply and divide

100

Multiply and simplfiy.

0.47 * 5.6

2.632

200

Multiply and simplfiy.

2.3*(-1.4)*1.1

-3.542

300

Multiply rational numbers (Simplify any FRACTION answers)

-5 2/3*(-1 1/2)

8 1/2

400

Divide and simplify if possible

1/2 ÷ 3

1/6

500

Divide and simplify is possible.

-9 9/10 ÷ (-2 3/4)

3 3/5

PEDMAS

100

Complete the following.

-(2²) x 3/5 ÷ (-0.25)

48/5 = 9 3/5

200

2 1/2 x 1/4 - (1/4)²

9/16

300

3/4+1 1/2*2-1/4

3 1/2

400

[(3.2 - 1.5) +  2³] - (0.5)²

9.45

500

10[(-12.2 + 2.2)² + 0.53]

1,005.3

Questions Bonus

100

Convert into a decimal

2/3

0.hat6

200

What is the approximate square root of 33 

5.7 or 5.8

300

Add and simplify is possible.

12 2/5 + (-5 1/3)

7 1/15

400

Divide.

3 ÷ (-0.375)

-8

500

Solve.

(1.7 - 3 2/7) ÷ ((-2) + 5 6/7)

-95/243