Rounding to the tens
Round 73 to the nearest ten
70
Round 275 to the nearest hundred
300
Find the sum of 648 and 231
879
Estimate then find the SUM:
354 and 411
400 + 400 = 800
Round six hundred ninety-two to the nearest ten
690
Round 87 to the nearest ten
90
Round 842 to the nearest hundred
800
Find the sum of 558 and 14
572
Mrs. Moore has 200 pieces of candy for her students. 78 pieces are chocolate. How many pieces of Mrs. Moore's candy are NOT chocolate?
122 pieces of Mrs. Moore's candy are not chocolate.
Round four hundred eighteen to the nearest hundred
400
Round 65 to the nearest ten
70
Round 645 to the nearest hundred
600
Find the difference between 438 and 212
226
Below is some information about how much money Girls on the Run raised at their snack sale this year each day.
Monday: $57
Tuesday: $98
Wednesday: $123
Thursday: $87
Friday: $102
Round each day's money to the nearest ten. On which day did the girls raise about $90?
Katie solved the subtraction problem below. Her solution is incorrect. What did Katie do wrong? What is the correct answer?
347
- 119
________
232
Katie is incorrect because she did not regroup in the ones place. She did 7 - 5 instead. The correct answer to 347-119 is 228.
Round 267 to the nearest ten
270
Round 250 to the nearest hundred
300
Find the difference between 734 and 526
208
Below is some information about how much money Girls on the Run raised at their snack sale this year each day.
Monday: $57
Tuesday: $98
Wednesday: $123
Thursday: $87
Friday: $102
How much money did the girls raise on Friday and Monday altogether?
The girls raised $159 altogether on Monday and Friday.
Maddie solved the subtraction problem below. Her solution is incorrect. What did Katie do wrong? What is the correct answer?
590
- 234
________
366
Maddie is incorrect because she did not change her tens after regrouping to the ones place. The correct answer should be 356.
590
- 234
_____
356
Round 248 to the nearest ten
250
Round 7,642 to the nearest hundred
7,600
Mrs. Stinespring has 72 pencils. Mrs. Mobley has 46 pencils. Ms. Tatum has 66 pencils. How many pencils do Mrs. Mobley and Ms. Tatum have combined?
46 + 66 = 112
Mrs. Clark has 1000 cookies for her friends. 542 of the cookies are sugar cookies. How many of the cookies are NOT sugar cookies?
458 of Mrs. Clark's cookies are not sugar cookies.
Jordan bought two toys. He spent $52 on the first toy. He spent $167 on the second toy.
Rounding to the nearest ten, about how much money did Jordan spend altogether?
How much money did Jordan actually spend?
1. Rounded to the nearest ten Jordan spent $220. $50 + $170 = $220
2. The actual amount Jordan spent was $219.