Show:
Place Value
Rounding and Estimation
Real World
Addition
Subtraction
100
10,000 + 7,000 + 500 + 30 + 6 in standard form
17,536
100
Round 451 to the nearest ten and hundred.
450 and 500
100
Bob has 12,745 legos. George has 1,543 fewer legos than Bob. How many legos does George have?
George has 11,202 legos.
100
6,305 + 2,512
8,817
100
8,754 - 531
8,223
200
Put in order from greatest to least: 12,064 12,046 12,604 12,640
12,640 12,604 12,064 12,046
200
Round 1,345 to the nearest ten and hundred.
1,350 and 1,300
200

5,476 people ride Bus D in March. 1,486 fewer people ride Bus E in the same month. a. How many people ride Bus E in March?

3,990 people ride Bus E in March

200
3,100 + 2,800
5,900
200
8,615 - 2,704
5,911
300
Compare: 2,998 ___ 2,989
>
300
Joe sold 145 cups of lemonade. Jim sold 218 cups of lemonade. About how many cups did the sell in all?
They sold about 300 (or 370) in all.
300

A supermarket has 1,213 red and green apples. 368 are green apples. How many of the apples are red? 

845 apples are red

300

12,406 + 3,855

16,261

300
14,000 - 8,296
5,704
400
Write in word form: 8,527
eight thousand, five hundred twenty-seven
400
Bookshelf one has 549 books. Bookshelf two has 863 books. Bookshelf three has 398 books. About how many books are there in all?
There are about 1,800 books in all.
400

2,531 people visit the Children's Museum on Monday. On Tuesday, there were 1,532 people at the museum. What is the total number of visitors for both days?

There were 4,063 visitors total for both days.

400

4,265 + 2,058 = 

6,323

400

2,561 - 684 = 

1,877

500

Write this number in expanded form: 80,519

80,000 + 500 + 10 + 9

500

Mark had $10,314. He spent $1,532 on a new TV. About how much money does he have left? Hint: Round each number to the nearest hundred and solve. 

He has about $8,800 left.

500

Michael has 754 songs in his audio device. Peter has 898 songs. How many songs do they have in all?

They have 1,652 songs in all.

500

4, 672 + 3,579 = 

8,251

500

5,010 - 1,325 = 

3,685