Chapter 3 Big Ideas Review

1. Which vocabulary phrase describes numbers that are easy to multiply and are close to actual numbers?

• place value numbers

• compatible numbers

• prime numbers

• even numbers

Find the product of 14x12

• 148

• 168

• 188

• 198

Find the product of 26x13

• 338

• 300

• 378

• 368

Find the product of 84x71

• 6,000

• 5,964

• 6,965

• 5,998

Lily cooked 13 boxes of hot dogs at the compnay picnic today. If each box contained 24 hotdogs, how many hotdogs were cooked in all?

• 11

• 37

• 307

• 312

Choose TWO expressions that can used to estimate the product of 17x22

• 15x25

• 20x30

• 20x20

• 17x20

Dani wants to buy a Nintendo Switch for his birthday. He has saved $35 so far. The price of the Nintendo Switch is 12 times what he has saved. How much more does Robert need to save to buy the Nintendo Switch? (MULTI-STEP PROBLEM)

• $455

• $420

• $385

• $350

Mrs. Gonzalez purchased new microscopes for her science class. The microscopes that were shipped to a school came in boxes of 12. There were 28 boxes of microscopes in all. What is the total number of microscopes that were shipped to the school?

• 226

• 236

• 326

• 336