Adding without Regrouping
1,234 + 1,234
2,468
5,678 + 8,765
14,443
Round 7,359 to the nearest hundred.
7,400
Estimate 8,446 - 2,312 by rounding to the nearest thousand.
8,000-2,000 = 6,000
What digit would fill the missing places?
1,47__ + 2,95 ___ = 4,4___4
2
4,567 + 4,321
8,888
1,346 + 1,967
3,313
Round 159 to the nearest hundred.
200
Estimate 561 + 701 by rounding to the nearest hundred.
600 + 700 = 1,300
What digit would fill the missing places?
5,85___ + 1,78 ___ = 7,6 ___6
3
1,082 + 1,117
2,199
7,225 + 2,987
10,212
Round 796 to the nearest hundred.
800
Estimate 28 tens - 9 tens by rounding to the nearest hundred.
280 - 90 rounds to 300-100 = 200
Mrs. Blazin has 218 more books than Mr. Stern. He has 1,725 books. How many does Mrs. Blazin have?
Mrs. Blazin has 1,943 books.
The SUM of 1,015 and 5,184 is 10 more than _______.
6,189
10
Name a number that will round to 100 when rounded to the nearest hundred.
Many answers accepted: anything between 50 and 149.
On Saturday, Mr. Blazin made 121 pizzas. On Sunday, he made 234 pizzas. About how many pizzas did he make on Saturday and Sunday?
100 + 200 = 300
Mr. Blazin made about 300 pizzas.
After paying $2,352 for a swing set, Mrs. Blazin had $325 left. How much money did she have to begin with?
Mrs. Blazin had $2,677.
The SUM of 2,356 and 6,232 is ______ more than 8,488.
100
The SUM of 9,876 and 5,432 is 10 less than ________.
15,318
Name a number that will round to 300 when rounded to the nearest hundred.
Many answers accepted: any number from 250 to 349
There are 46 students in 1st grade, 36 in 2nd grade, and 32 in 3rd grade. About how many students would there be at a Walk 'n Talk for all three grades?
50 + 40 + 30 = 120
There would be about 120 students at Walk 'n Talk for first, second, and third grades.
Theo has 159 legos. He has 1,253 fewer legos than Luke. How many do the boys have in all?
Theo has 159.
Luke has 159 + 1,253 = 1,412
Together they have 1,571 Legos.