4.NF.B.3c

1 3/6+1 4/6=

• 3 1/6
• 2 7/6
• 3 3/6
• 3 6/1

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

3 3/8 + 4 6/8=

• 8 1/8
• 8 9/8
• 8 6/8
• 5 1/2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

2 3/5 + 1 3/5=

• 3 6/5
• 4 1/5
• 6 5/3

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Megan is knitting a scarf. She has 2 7/12 feet so far. She needs an additional 2 11/12 feet. What is the expression used to solve the problem?

• 2 5/12+ 2 11/12
• 2 7/12 + 2 11/12
• 7 1/2 +11 1/2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How can you estimate the sum? Kim is cutting bread into fourths. She needs to wrap 3 3/4 loaves to take to a luncheon and 1 2/4 to a bake sale. About how many loaves does Kim need for the luncheon and bake sale?

• Round to a whole number, abt 6
• estimate
• Use fraction strips

What are the benchmark fractions? 

• 1,0,3/4
• 0,1
• 0,1,1/4.3/4,1/2

Tags

CCSS.4.NF.A.2

1/10 + 3/5 Is about 1

• Reasonable
• unreasonable

7/10+2/3>1 

• reasonable
• unreasonable

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

How do you think you did?

• A
• B
• C
• D