Round to the Tens
Round 74 to the nearest 10.
70
Round 486 to the nearest hundred.
500
Estimate the sum of 78 + 53 by rounding to the nearest tens.
80 + 50 = 130
Estimate the difference of 78 - 53 by rounding to the nearest tens.
80 - 50 = 30
The school library has 48 storybooks and 31 nonfiction books.
About how many books are there in all? Estimate by rounding to the nearest tens.
50 + 30 = about 80 books
Round 38 to the nearest 10.
40
Round 241 to the nearest hundred.
200
Estimate the sum of 268 + 323 by rounding to the nearest hundreds.
300 + 300 = 600
Estimate the difference of 523 - 268 by rounding to the nearest hundreds.
500 - 300 = 200
Ms. Lee bought 26 star stickers and 44 smiley stickers for her class. About how many stickers did she buy altogether? Estimate by rounding to the nearest tens.
30 + 40 = about 70 stickers
Round 25 to the nearest 10.
30
Round 704 to the nearest hundred.
700
Estimate the sum of 29 + 68 by rounding to the nearest tens.
30 + 70 = 100
Estimate the difference of 68 - 27 by rounding to the nearest tens.
70 - 30 = 40
There are 342 juice boxes for the third graders. There are 192 juice boxes for the second graders. About how many more juice boxes do the third graders have?Estimate by rounding to the nearest hundreds.
Round 96 to the nearest 10.
100
Round 387 to the nearest hundred.
400
Estimate the sum of 631 + 288 by rounding to the nearest hundreds.
600 + 300 = 900
Estimate the difference of 631 - 288 by rounding to the nearest hundreds.
600 - 300 = 300
Mrs. Alshawa had 483 pencils in her classroom at the beginning of the year. Now she has 221. About how many pencils have been used and thrown away? Estimate by rounding to the nearest hundreds.
500 - 200 = about 300 pencils have been used and thrown away
Round 3 to the nearest 10.
0
Round 113 to the nearest hundred.
100
Estimate the sum of 452 + 328 by rounding to the nearest tens.
450 + 330 = 780
Estimate the difference of 452 - 328 by rounding to the nearest tens.
500 - 300 = 200
Ms. Carroll had 782 crayons for her students. After giving some away, she had 319 crayons left.
About how many crayons did she give away? Estimate by rounding to the nearest hundreds.
800 - 300 = about 500 crayons