Rounding with Addition and Subtraction

Mr. Ledford has a mystery number. He says that his mystery rounds to 700. Which of the following could NOT be Mr. Ledford's number?

• 625

• 702

• 741

• 698

Round 423 to the nearest hundred.

• 500

• 450

• 420

• 400

Mrs. Hinson wants to solve the problem 27 + 91 by rounding the numbers to the nearest ten. What problem would Mrs. Hinson have if she rounded the numbers?

• 30+20

• 30+90

• 30+100

• 30+10

What is 54 rounded to the nearest ten?

• 50

• 60

• 100

• 55

What is $421 rounded to the nearest hundred?

• $400

• $430

• $500

• $420

Ronell has 134 pencils. Will has 88 pencils. Dante has 74 pencils. About how many pencils do they have altogether to the nearest ten pencils?

• 900

• 321

• 200

• 270

Round 5,643 to the nearest HUNDREDS place.

• 5,000

• 5,600

• 5,700

• 6,000

What is 356 rounded to the nearest ten?

• 300

• 350

• 360

• 400

A type of estimation with specific rules for determining the closest value

• rounding

• sum

• estimation

• profit

Estimate how many more miles were run last year than this year by rounding each number in the table to the nearest hundred and solving the problem

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