5th Grade Big Ideas Chapter 8

Simplest Form

100

2/6

1/3

200

4/16

1/4

300

15/20

3/4

400

16/24

2/3

500

10/2

5/1 or 5

Estimating

100

5/6-1/6

1-0=1

200

5/8-2/4

1/2-1/2=0

300

13/15+1/12

1+0=1

400

7/8+2/3

1+1/2=1 1/2

500

97/100+48/50

1+1=2

Adding

100

3/4+1/8

7/8

200

2/15+2/3

12/15

300

3/5+1/2

13/10 or 1 3/10

400

1 3/4+5/8

1 11/8 or 2 3/8

500

1/3+6 2/5

6 11/15

Subtracting

100

1/4-1/8

1/8

200

3/2-7/10

8/10

300

4/3-2/5

14/15

400

8 7/10-1 2/5

7 3/10

500

4-3 5/6

1/6

Stories

100

Sam has 1/2 pepperoni pizza and 2/5 cheese pizza. How much pizza does he have all together?

9/10 pizza

200

A cereal bowl is filled with 2/3 cup red fruit loops and 2/6 cup green fruit loops. What is the total cups of fruit loops in the bowl

1 cup of fruit loops

300

Jen has 10 ft of yarn. If she uses 3 3/4 ft for a scarf, how many ft of yarn will she have left over?

6 1/4 ft of yarn

400

Patrick grated 2/3 of a block of cheese to make macaroni. What fraction of the block is left?

1/3 block of cheese

500

Susan had 5 boxes of pop tarts in her pantry. If she went through 2 1/2 boxes this week, how many boxes of pop tarts remain?

2 1/2 boxes of pop tarts