Estimation and Computation

Leo's morning bus route picked up 176 students for school. In the afternoon, the bus took 84 students home. Which estimate shows about bout how many more students did Leo's bus take in the morning than in the afternoon?

• 300

• 100

• 200

• 20

Elena read 3 chapter books in one month.

• She read a book with 217 pages on week 1.
• She read a book with 465 pages on week 2 and 3.
• She read a book with 107 pages on the 4th week.

Which is the best estimate of the number of pages Elena read these 4 weeks?

• 900

• 700

• 1,000

• 800

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

Mario wants to round the numbers 815 and 651 to the nearest hundred. Which statement is true about the numbers Marion will round?

• 815 will round to 900

• both numbers will round to 700

• 651 will round to 700

• 651 will round to 650

Britani's chicken, Chikaletta, laid 263 eggs last month. About how many eggs did Chikaletta lay last month?

• 300 eggs

• 200 eggs

• 100 eggs

• 350 eggs

Cale bought 231 cows and Lisa bought 392 cows. About how many total cows did they buy?

• 600 cows

• 1,000 cows

• 200 cows

• 100 cows

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

Round 56 to the nearest ten

• 60

• 50

• 70

• 55