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 B. How many people ride both buses in March?
a. 3,990 people ride Bus E in March. b. 9,466 people ride both buses 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 apples. 368 are green apples. a. How many of the apples are red? b. How many more red apples than green apples does the supermarket have?
a. 845 apples are red. b. There are 477 more red apples than green apples.
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
2,500 people visit the Children's Museum on Monday. On Tuesday, there were 532 more people at the museum than on Monday. What is the total number of visitors for both days?
There were 5,532 visitors total for both days.
400
_,265 + 2,058 = 6,323
4
400
2,_61 - 684 = 1,877
5
500
Fill in the missing numbers 145, 135, 125, 115, ____, _____
105, 95
500
Mark had $10,314. He spent $1,532 on a new TV. He also spent $679 on a new phone. About how much money does he have left?
He has about $8,100, or about $7,000 left.
500
Michael has 754 songs in his audio device. He has 98 more songs than Peter. How many songs do they have in all?
They have 1,410 songs in all.
500
4, 672 + 3,_79 = 8,251
5
500
5,010 - _,685 = 1,325
3
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