Adding Mixed Number Models

What mistake did Jarrod make?

• In Step 1, he should have multiplied 3 and 7 by 6 before adding.

• In Step 2, he should not have added the denominators.

• In Step 2, he should have multiplied 2 and 5 instead of adding them.

• In Step 3, he should not have added the whole number and fraction.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Indianapolis had 1 1/10 inches of snow in November. In December, they had 5 2/10 inches of snow. In January, they had 6 inches of snow. What is the total number of inches of snow?

Tags

CCSS.7.NS.A.1C

Indianapolis had 1 1/10 inches of snow in November. In December, they had 5 2/10 inches of snow. In January, they had 6 inches.

How much more snow did Indianapolis have in January than November?

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What number is shown in this model?

• 3 2/3

• 11/12

• 4 2/3

Tags

CCSS.3.G.A.2

1/2 + 6 2/3=
Reduce if needed.

• 7  7/6

• 10  1/6

• 12  1/6

• 9  3/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

1/4 + 2 3/8

• 5  5/8

• 5  1/4

• 1  1/4

• 1  1/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

1/2 + 7 1/2

• 17

• 16

• 14  1/2

• 16  1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

1/3 + 2 1/3

• 6  1/3

• 6  2/3

• 6  2/6

• 7  2/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

7/8 + 2 4/8

• 4 2/8

• 4  3/8

• 5 3/8

• 5  2/8

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

4/5 + 3/5

• 7  2/5

• 8  2/5

• 6  3/5

• 8  9/5

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D