Unit 3 Lesson 3

Did you set up your notebook like the picture?

You will show all your work in your notebook.

• Yes, I did.

• No, I didn't.

Conny is adding 456 + 235. She says she will start at 456, add on 200 to get to 656, add on 30 to get to 686, then add on 5 more. What will be Conny's sum?

Tags

CCSS.3.MD.A.2

Kai is adding 456 + 398. She said she will add her ones together, her tens together, and her hundreds together. She then will add all her partial sums together to find the sum.

6 + 8 = __

50 + 90 = __

400 + 300 = ___

Use her strategy to find the sum of 456 + 398?

Tags

CCSS.3.NBT.A.2

Find the sum of 679 + 321 using any strategy.

• 1,000

• 990

• 9,910

• 998

Tags

CCSS.3.MD.A.2

Find the sum of 537 + 346.

Tags

CCSS.3.MD.A.2

What is the area of this figure?

• 12 sq. cm
• 32 sq. cm
• 16 sq. cm
• 28 sq. cm

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

How many more students liked soccer than hockey?

Tags

CCSS.2.MD.D.9