5th Grade: Unit 3

Multiplication

100

2 x 1/4 

2/4 or 1/2 

200

7/8 x 4

28/8 

300

20/5 x 3

60/5 or 12

400

7 x 5/30

35/30

500

4 x 1/7

4/7 

Division

100

1/3 ➗ 5 

1/15

200

6 ➗ 1/5

30 

300

1/8 ➗ 2

1/16

400

1/10 ➗ 5

1/50 

500

8 ➗ 1/4

32

Mix

100

Miss Batterson wants to drive 4 miles. The track is 1/2 mile long. How many times will Miss Batterson have to drive around the track? Explain or show your reasoning. 

4 x 1/2 = 8 

Miss Batterson will need to drive around the track 8 times. 

200

4 x 7 1/5

4 x 36/5 = 144/5

 or 28 4/5 

300

2/4 x 3/5 

6/20

400

5 4/5 x 3 1/3

5 x 3 = 15                       |      15 + 25/15 + 36/15 + 4/15 

5 x 1/3 = 5/3 or 25/15     |     15 + 65/15

4/5 x 3 = 12/5 or 36/15   |     15 + 4 5/15 or 4 1/3

4/5 x 1/3 = 4/15             |      19 1/3

500

The dog food bag weighs 1/3 pound. Miss Batterson pours it into 4 bowls equally. How many pounds of dog food is in each bowl? Explain your reasoning.

1/3 ➗ 4 = 1/12 pound. If I divide 1/3 pound into 4 bowls equally. I will get 12 equal pieces total in 1 pound. So each bowl would get 1/12 pound.