Fractions of a Set Using Repeated Addition

Use repeated addition to solve the problem.

1/2 of 18

Answer explanation

1/2 of 18

I know that 9 + 9 is 18

Therefore 1/2 of 18 is 9.

Tags

CCSS.5.NF.B.4A

Which thinking represents 1/6 of 18?

• 9 + 9

• 3 + 3 + 3 + 3 + 3 + 3

  1/6 of 18 is 3 because I added 3 six times.

• 2 + 2 + 2

  1/6 of 18 is 2 because I added 2 three times.

• 6 + 3 + 18

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Use repeated addition to solve the problem.

1/5 of 35

Answer explanation

1/5 of 35

I know that 5 + 5 + 5 + 5 + 5 + 5 + 5 = 35

Therefore 1/5 of 35 is 7 because I added 5 seven times.

Tags

CCSS.5.NF.B.4A

Which thinking represents 1/2 of 250?

• 125 + 125 = 250

  1/2 of 250 = 125 because I added 125 two times.

• 1 + 2 + 250

• 120 + 130

• 2 + 250

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Use repeated addition to solve the problem.

1/3 of 24

Answer explanation

1/3 of 24

I know that 8 + 8 + 8 = 24

Therefore 1/3 of 24 is 8.

Tags

CCSS.5.NF.B.4A

Which thinking represents 1/5 of 15?

• 5 + 5 + 5

  Therefore 1/5 of 15 is 3 because I added 5 three times.

• 3 + 3 + 3 + 3 + 3

  Therefore 1/5 of 15 is 3 because I added 3 five times.

• 3 + 3 + 3 + 3 + 3

  Therefore 1/5 of 15 is 5 because I added 3 five times.

• 5 + 5 + 5

  Therefore 1/5 of 15 is 5 because I added 5 three times.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Use repeated addition to solve the problem.

1/10 of 40

Answer explanation

1/10 of 40

I know that 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 is 40.

Therefore 1/10 of 40 is 4 because I added 4 ten times.

Tags

CCSS.5.NF.B.4B

Which thinking represents 1/4 of 24?

• 8 + 8 + 8

  1/4 of 24 = 8 because I added 8 three times.

• 12 + 12

  1/4 of 24 = 12 because I added 12 two times

• 6 + 6 + 6 + 6

  1/4 of 24 = 6 because I added 6 four times

• 4 + 4 + 4 + 4 + 4 + 4

  1/4 of 24 = 4 because I added 4 six times.

Tags

CCSS.4.NF.B.4A

CCSS.4.NF.B.4B

Use repeated addition to solve the problem.

1/7 of 14

Answer explanation

1/7 of 14

I know that 7 + 7 = 14

Therefore 1/7 of 14 is 2 because I added 7 two times.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Which thinking represents 1/4 of 12?

• 4 + 4 

  1/4 of 12 is 4 because I added 4 two times

• 4 + 12

• 3 + 3 + 3 + 3

  1/4 of 12 is 4 because I added 3 four times

• 6 + 6

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B