Topic 10 Multiplying Fractions

Multiply unit fractions

100

1/4 x 3

3/4

+100 extra points

200

1/5 x2

2/5

DOUBLE JEOPARDY

300

7/10=

1/10 x 7

400

8/8 = 

1/8 x 8

500

9/4 =

1/4 x 9

Multiply other fractions

100

4 x 2/10

8/10

200

4 x 1/3

1 and 1/3

+100 extra points

300

6 x 3/8

2 and 2/8

400

8 x 2/5

3 and 1/5

DOUBLE JEOPARDY

500

11 x 7/8

9 and 5/8

Multiply mixed number

100

3 x 2 and 1/5

6 and 3/5

200

2 x 3 and 1/2

7

300

8 x 2 and 3/4

22

+100 extra points

400

3 x 4 and 7/10

14 and 1/10

500

9 x 5 and 3/4

51 and 3/4

DOUBLE JEOPARDY

Time problems

100

How many minutes are in 6 and 1/4 hours?

375 minutes

+100 extra points

200

How many weeks are in 6,265 days?

895 weeks

300

2 years 5 months - 9 months

1 year 8 months

DOUBLE JEOPARDY

400

8 hours 30 minutes + 7 hours 55 minutes

16 hours and 25 minutes

500

Penny and Annie work in a shoe store. Penny worked 5 hours and 8 minutes, and Annie worked 3 hours and 12 minutes. How much longer did Penny work than Annie?

1 hour and 56 minutes more

+100 extra points

Mystery

100

Draw an obtuse angle

teacher check

DOUBLE JEOPARDY

200

Draw a symmetrical shape

teacher check

DOUBLE JEOPARDY

300

12,873 divided by 4

3,218 remainder 1

400

58 x 64

3,712

500

Name all the factor pairs of 36

1 and 36

2 and 18

3 and 12

4 and 9

6 and 6

+100 extra points