Place Value
Rounding and Estimation
Real World
Addition
Subtraction
100

7,000 + 500 + 30 + 6 in standard form

7,536

100
Round 451 to the nearest ten and hundred.
450 and 500
100

Bob has 745 legos. George has 543 fewer legos than Bob. How many legos does George have?

George has 202 legos.

100

305 + 512

817

100

700-300

400

200

Put in order from greatest to least: 2,064 2,046 2,604 2,640

2,640 2,604 2,064 2,046

200

Round 345 to the nearest ten and hundred.

350 and 300

200

476 people ride Bus D in March.  126 fewer people ride Bus E in the same month.  How many people ride Bus E in March 

350 less people 

200

100 + 800

900

200

955-232

723

300

Compare: 998 ___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? 

845 apples are red.

300

406 + 855

1,261

300

543-355

188

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. How many people visit on Tuesday?

3,032

400

? + 100 = 863

763

400

595 - ? = 234

361

500
Fill in the missing numbers 145, 135, 125, 115, ____, _____
105, 95
500

Mark had $3,000. He spent $1,5100 on a new TV. He also spent $510 on a new phone. About how much money does he have left?

He has about $1,000

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

4,235+2,955

7,190

500

5,234 + 3,888 = 

9,122

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