Unit 4 End-of-Unit Review

Which multiplication problem is shown by this area model? (NO calculator)

• 4 x 23

• 24 x 42

• 10 x 23

• 14 x 23

Answer explanation

Which multiplication problem is shown by this area model? (NO calculator)

• 2 x 52

• 50 x 42

• 52 x 44

• 42 x 54

Answer explanation

• 71 R2

• 70 R7

• 71

• 7 R12

Answer explanation

• 83

• 8 R34

• 83 R4

• 80 R28

Answer explanation

Delia purchased a big brownie from the grocery store. What is the best estimate for the weight of this brownie?

• 20 ounces

• 20 kilograms

• 20 grams

• 20 pounds

Answer explanation

This brownie would weigh about as much as 20 paperclips.

20 pounds, 20 ounces, and 20 kilograms are all too heavy!

Match the following pictures with the correct estimate for its weight.

• 2 grams

• 
• 2 tons

• 
• 2 pounds

• 
• 2 ounces

• 

Mrs. Ryan gardened for 3 hours and 30 minutes without a break. If she finished gardening at 5:15 PM, what time did she begin gardening?

• 2:15 PM

• 1:45 PM

• 2:45 PM

• 8:45 PM

Answer explanation

She started gardening at 1:45 PM.

It took Ms. Collatz 45 minutes to give Nora a bath and 18 minutes to dry her. The clock shows the time she started. What time did she finish cleaning Nora?

• 4:51

• 5:09

• 4:09

• 5:12

Answer explanation

What time does it show on the clock?

​ ​ (a)   : ​ (b)  

• 4
• 29
• 5
• 39
• 49
• 19
• 26
• 6
• 3

Answer explanation

The clock shows 4:29

What time does it show on the clock?

​ ​ (a)   ​ : ​ ​ ​ ​ (b)  

• 7
• 22
• 42
• 5
• 4
• 37
• 6
• 3

Answer explanation

The clock shows 7:22