Rounding to the Nearest 10
16 rounded to the nearest 10
What is 20?
98 rounded to the nearest 100.
What is 100?
412 + 227 = ?
What is 639?
368 - 238 = ?
What is 130?
Coach Tut juggled a three-ball cascade for 987 seconds. Mr. Spite juggled a three-ball cascade for 892 seconds. How much longer did Coach Tut juggle than Mr. Spite?
What is 95 seconds longer?
(987 - 892 = 95)
35 rounded to the nearest 10
40
250 rounded to the nearest 100.
What is 300?
28 + 17 = ?
What is 45?
229 - 138 = ?
What is 91?
Mr. Fall has 392 more baseball cards than Mr. Spite. Mr Spite has 600 baseball cards. How many baseball cards does Mr. Fall have?
What is Mr. Fall has 992 baseball cards?
(392 + 600 = 992)
128 rounded to the nearest 10.
What is 130?
What is 5 rounded to the nearest 100?
0
The sum of 212 and 418.
What is 630?
418 - 239 = ?
What is 179?
Mrs. Pixley baked 128 more cookies than Mr. Spite. Mrs. Pixley baked 226 cookies. How many cookies did Mr. Spite bake?
(226 - 128 = 98)
245 rounded to the nearest 10
What is 250?
Round each addend to the nearest 100 to find an estimated sum. 250 + 365 = ?
What is 300 + 400 = 700?
345 + 478 = ?
What is 823?
800 - 273 =
Mrs. O'Mara counts the tiles on her bathroom floor. She sees 4 rows and 5 columns of tiles. There are 10 green tiles, and the rest are purple. How many purple tiles are there?
What is 10 purple tiles?
(4 x 5 = 20
20 - 10 = 10)
998 rounded to the nearest 10
What is 1,000?
Ms Cook wanted to estimate the difference between 468 and 310. She rounded each number to the nearest hundred before subtracting. What was her estimate?
What is 500 - 300 = 200?
712g + 199g =
What is 911?
600 - 98 = ?
What is 502?
Mr. Spite eats 22 Reese's Peanut Butter Cups every week. Round to the nearest 10 to see ABOUT how many he eats every week. Use your estimate to see ABOUT how many Reese's Peanut Butter Cups he eats in a month (four weeks).
What is 80?
(22 is about 20. 20 + 20 + 20 + 20 = 80)