Chapter 3: Applying Rational Numbers

Decimal Operations (No Calculator)

100

7+5.826

12.826

200

-5.62+(-12.9)

-18.52

300

41-9.85

31.15

400

1.7 x (-12)

-20.4

500

14.7 ÷ 3.5

4.2

Fraction Operations (No Calculator)

100

DOUBLE JEOPARDY

2/3 - 1/3 

1/3

200

9/10-3/4

3/20

300

21 8/12 - 3 1/2

18 1/6

400

-3/4 x 2/9

-1/6

500

(1/2 + 2/3) ÷ 1 1/2

7/9

Decimal Equations

100

c-32.56=12

44.56

200

a÷ 21.23=-3.5

-74.305

300

3.1t=27.9

9

400

d-14.25=-23.9

-9.65

500

60k=54

0.9

Fraction Equations

100

5y=3/10

3/50

200

a-1/2=1/4

3/4

300

z+1/6=3 9/15

103/30 OR 3 13/30

400

2/3r=3/5

9/10

500

-5/26+m=-7/13

-9/26

Word Problems

100

The fastest 6th grade shuttle run time this year was 9.8 seconds.  The fastest 7th grade shuttle run time was 9.2 seconds.  How much faster was the 7th grade time? LABEL YOUR ANSWERS!

.6 seconds

200

I am planning to make some banana bread for my 8th grade advisory.  The recipe calls for 3/4 cup brown sugar. If I quadruple the recipe, I'll have enough for my 7th grade math students.  How many cups of sugar will I need if I make enough banana bread for my 7th grade math classes?

3 cups

300

DOUBLE JEOPARDY!

Pailey spent 1/2 hour doing her math homework and 1/3 hours doing her science homework.  How long did spend doing her homework? 

5/6 hour

400

The 8th grade concessions made $20.75 in tips.  How much does each person get if they split the tips evenly among the 5 people who worked?

$4.15

500

The farthest measurement for the 7th grade sit and reach test was 11 inches.  The lowest measurement was -5.25.  How much further was the highest measurement from the lowest? 

16.25 inches