Comparing Numbers
Rounding Numbers
Adding Numbers
Subtracting Numbers
Forms
100

2405 □ 3405

2405 < 3405

100

Thousands

435,600

436,000

100

   4,060 + 2,040 = 

6,100

100

4236 - 2324 =

1912

100

Expanded form of 

12,342

10,000 + 2,000 + 300 + 40 + 2

200

121305 □ 120304

121305 > 120304

200

Hundreds 

124,440

124,400

200

12,350 + 3,450 =

15,800

200

1065 - 494 =

571

200

Word form of 

2,781

Two thousand, seven hundred eighty one

300

408,906 □ 409,905

408906 < 409,905

300

Ten thousands

3,456,400

3,450,000

300

40,906+13,194=

54100

300

426,123 - 316,230

109,893

300

Expanded form of 340,206

Three hundred forty thousand two hundred six

400

306,118 □ 306,115

306,118 > 306,115

400

Thousands

129,640

130,000

400

6,246 + 2,884 =

9,130

400

3,000,000 - 642,100 =

2,357,900

400

Word form of 

114,060

One hundred fourteen thousand, sixty

500

4,090 □ 4,100

4,090 < 4,100

500

Tens

400,646

400,650

500

5624 + 4376 =

10,000

500

300,000 - 189,423 =

110,577

500
Expanded form

128,904

100,000 + 20,000 + 8,000 + 900 + 4