Addition Estimation

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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516 + 468 =

• 974

• 1,984

• 984

• 986

Julie was playing Fruit Ninja on her tablet. On the first round she scored 225 points, on the second she got 199 points and in the third round she scored 94 points. Which of the following number sentences shows one way to estimate how many points Julie won during these 3 rounds?

• 200 + 200 + 100 = 500

• 200 + 200 + 50 = 450

• 200 + 100 + 90 = 390

• 100 + 100 + 100 =300

What is the sum of the following numerals rounded to the nearest hundreds?

424 and 685

• 1,100

• 1,000

• 300

• 200

Jamie weights 142 pounds and Ken weights 201 pounds. About how much do they weight together?

• 200

• 300

• 100

• 231

Which number sentence shows the best estimate of the total number of coins?

• 350+180+40= 570

• 300+100+80= 480

• 360+140+80= 580

• 340+140+ 80 =590

Amy rode her bike last weekend. Which is the best estimate of the total number of miles she rode her bike?

• 80 miles

• 60 miles

• 70 miles

• 90 miles

Which is the best estimate of the total number of books they read?

• 220 books

• 180 books

• 200 books

• 160 books

About how many more tickets were sold on Friday night than Saturday night?

• 100

• 400

• 200

• 300

Claire's Cookies sold 253 cookies in October, 212 in November, and 225 in December. How many cookies did Claire's Cookies sell in October and November combined?

• 476 cookies

• 478 cookies

• 690 cookies

• 465 cookies