Topic 6 Review pt. 1

An estimate of 756 - 319 using compatible numbers is 750 - 300 = 450.Would it be reasonable for the exact difference to be 337? Explain.

• Yes, because the estimate is close to the actual difference so the estimate is correct.

• No, because the estimate is not close to the actual difference so the estimate is incorrect.

• Yes, because the estimate is not close to the actual difference so the estimate is correct.

• No, because the estimate is close to the actual difference so the estimate is correct.

Find the sum of 212, 69, and 183.

• 464

• 454

• 364

• 354

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is 219 + 196?

• 397

• 405

• 415

• 433

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Which addends are broken apart correctly? Select all that apply.

• 156 + 209 = (100 + 200) + (50 + 10) + (6 + 9)

• 332 + 458 = (300 + 4) + (30 + 5) + (2 + 8)

• 640 + 109 = (600 + 100) + 40 + 9

• 652 + 330 = (600 + 300) + (50 + 30) + 2

• 290 + 209 = (200 + 200) + (90 + 10) + 9

Find 185 + 19. Then subtract the sumfrom 311.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

FREEBIE! What does Miss O like from McDonalds

• Hanmburgers

• Chicken Nuggets

• Fries

• Cookies

Tags

CCSS.2.NBT.B.7

Subtract 165 from 300.

• 85

• 135

• 160

• 465

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

What is 763 - 547?

• 116

• 216

• 226

• 261

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Consider the conjecture 116 + 88 is greater than 164. How can you construct an argument to prove the conjecture? Enter sum, difference, multiply, divide, add, subtract, or compare in each box.

Find the _____, of 116 and 88. Then ____ it to 164.

• sum, difference

• difference, compare

• sum, compare

• subtract, compare

Which equation supports the conjecture that 116 + 88 is greater than 164.

• 116 + 88 = 204 and 204 < 164

• 116 + 88 = 204 and 204 > 164

• 116 + 88 = 164 and 164 = 164

Tags

CCSS.1.NBT.B.3