Rational Number Practice

Addition

100

3.07 + 5.18 =

8.25

200

2.4 + (-1.85) = 

0.55

300

6.3 + (4/5) =

(4/5 is fraction four fifths or four over five)

7.1 or 7 1/10

400

-3.15 + (1 2/25) =

(1 2/25 is fractions one and two twenty-fifths or 1 and 2 over 25

2.07 or 2 7/100

500

-5/8 + (-3 1/4) =

fraction plus a mixed number

-3 7/8

Subtraction

100

-0.54 - (-8) =

Remember rational numbers use the number line!!!

7.46

200

(-4/9) - (-5/9) =

Theses are fractions negative four ninths minus negative five ninths.

1/9

300

7 3/4 - 1/6 =

These are fractions!!!!

7 7/12

400

2.3 - 6.2 =

-3.9

500

8.12 - 3/100 = 

decimal minus a fraction!

8.09 or 8 9/100

Multiplication

100

-5/6 X 7/8 =

fractions times a fraction

-35/48

200

-4 x 6.3 =

-25.2

300

-1 1/9 x (-1/2) =

mixed number times a fraction

10/18 or 5/9

400

1.3 x (-1.8) =

2.34

500

3.5 X 1/4 =

decimal times a fraction

0.875 or 35/40 or 7/8

Division

100

1/7 divided by 2/5 =

4/21

200

-7.74 divided by 6 =

-1.29

300

-0.29 divided by (-0.5)

0.58

400

2 1/3 divided by (-2/7) =

mixed number divided by fraction

-49/6 or -8 1/6

500

-0.27 divided by 2/5 =

0.675 or -135/200 or -27/40

Algebraic equations

100

3a - 7 = 26

Solve for a

11

200

6b - 4 = 38

Solve for b

7

300

8m + 11 = -53

Solve for m

-8

400

9f + 5 = 77

Solve for f

8

500

10h + 58 = -2

Solve for h

-6