Unit 1 Review

Look at the problem below.

215 + 176

What is true about solving this addition problem?

• No place values will need to be regrouped.

• The tens will need to be regrouped.

• The ones will need to be regrouped.

• The hundreds will need to be regrouped.

What unknown number makes this equation true?

584 + 38 = 600 + _____

Which number rounds to 800 when rounding to the nearest hundred?

• 719

• 749

• 839

• 899

Hakan purchased 64 candy bars from Wonka Candy store. What is 64 rounded to the nearest ten?

There were 256 ounces of water in a jug. Haley poured 194 ounces of water out of the jug. How many ounces of water are left in the jug?

Sara was trying to count the number of gumballs in her brother's gumball machine. If she counted 67 blue gumballs, 103 red gumballs, and 89 yellow gumballs, how many gumballs did Sara count all together?

A teacher had a bag of 100 cotton balls. Her students used all but 17 of the cotton balls on their art projects. How many cotton balls did the students use on their art projects?

Which of the following is the same as 472?

• 1. 4 tens + 7 hundreds + 2 ones

• 1. 4 hundreds + 72 tens

• 1. 4 hundreds + 7 tens + 2 ones

• 1. 400 hundreds + 70 tens + 2 ones

Ricky read a book that has 7,813 words. Write 7,813 in expanded form.

789 ____ 879

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