Addition
Rounding Numbers
Number Forms
Comparing Numbers
Story Problems
100

3,572+5,127

8699

100

Round to the nearest hundreds place: 4,562

4,600

100

Write this number in number form: ten thousand, four hundred eleven

10,411

100

564,395 __ 654,395

< (less than)

100

The library has 10,600 books.  The town library has 10 times as many books.  How many books does the town library have?

106,000 books

200

398,542+485,473

884,015

200

Round to the nearest thousands place: 6,992

7,000

200

Write this number in expanded form: 45,612

40,000+5,000+600+10+2

200

45,123 __ 45,132

< (less than)

200

Jose's parents bought a used car, a new motorcycle, and a used snowmobile.  The motorcycle cost $9,690.  The car cost $8,999.  The snow mobile cose $4,419.  How much did they spend all together?

$23,108

300

87,462-32,558

54,904

300

Round to the nearest ten thousands place: 139,442

140,000

300

Write this number in standard form: 500,000+3,000+200+30+4

503,234

300

4,950 __ 495x10

= (equal)
300

The post office sold 204,789 stamps last week and 93,061 stamps this week. How many more stamps did they sell last week than this week?

111,728 stamps

400
504,322-395,400

108,922

400

Round to the nearest hundred thousands place:540,588

500,000

400

Write this number in word form: 32,468

thirty two thousand, four hundred sixty eight

400

243,889 __243,887

> (greater than)

400

In one year, the animal shelter bough 25,460 pounds of dog food.  That was 10 times the amount of cat foot purchased in the month of July.  How much cat food did they purchase in July?

2,546 pounds

500

500,000-398,244

101,756

500

Round to the nearest ten thousands place: 499,876

500,000

500
Write this number in word form: 200,000+40,000+300+50+9

two hundred forty thousand, three hundred fifty nine

500

250 __ 2,500/10

= (equal)
500

In all, 30,436 people went skiing in February and January combined.  16,009 went skiing in February.  How many more people went skiing in January than in February?

1,582 people