Unit 4 Review

Olivia is adding the numbers 42, 8, and 33. Which of the following explains how she can solve the problem correctly?

• Olivia can add 42 + 8 to get 50. Then she add 33 to 50 to get a final answer of 83.

• Olivia can add 42 + 8 to get 50. Then she can subtract 33 from 50 to get the final answer of 17.

• She can add 42 and 8 to get 50. Then she can subtract 33 from 55 to get a final answer of 27.

• Olivia can add up 2 + 8 + 0 to get an answer of 10. She can then add 40 + 30 to get a total of 70. Finally, they can add 70 + 10 to get an answer of 80.

On which three days did Santino read a total of 143 minutes?

• Monday, Tuesday, Thursday

• Tuesday, Thursday, Wednesday

• Monday, Tuesday, Wednesday

• Thursday, Monday, Wednesday

What two items total $110?

• Purse and Dress

• Skirt and Ring

• Purse and Ring

• Dress and Ring

When the Cashier rang up the items, she got a total of $226. Does the order that she rings up the item matter and why?

• Yes, because if you add up numbers in a different order you will get a different answer.

• No, because you can skip numbers and still get the same answer.

• Yes, because you have to subtract the last number.

• No, because it does not matter what order you add numbers you will still get the same answer.

How many more people went in July than June?

• 310 people

• 307 people

• 410 People

• 720 People

Molly is solving an equation and this is her answer. What equation did she solve?

• 602-400

• 297+133

• 125+278

• 597-243

Sam solved the problem 642-198. What is the correct addition sentence to check his answer?

• 444+642

• 642+198

• 554+198

• 444+198

How many more points does the green team have than the purple team?

• 12
• 16
• 28
• 32

How many more laptops than smartphones?

• 200 more

• 500 more

• 325 more

• 250 more

In what two places did Will find 17 cents?

• Under the bed and in the washing machine

• In his pants pocket and the coffee table

• In the washing machine and the coffee table

• Under the bed and on the coffee table