Place Value
Expanded Form
Rounding
Addition
Mental Math
100

What number is equal to 2 hundreds and 5 ones?

205

100

What number is this?

4,000 + 900 + 30 + 8

4,938

100

Round 528 to the nearest ten

530

100

Solve: 435 + 231

666

100

What is 100 more than 3,628?

3,728

200

What number is equal to 6 thousands, 7 tens, and 5 ones?

6,075

200

What number is this?

9,000 + 400 + 30

9,430

200

Round 281 to the nearest ten

280

200

Solve: 382 + 116

498

200

What is 100 more than 8,279?

8,379

300

What number is equal to 5 thousands, 9 tens, and 2 ones?

5,092

300
What is 2,893 written in expanded form?

2,000 + 800 + 90 + 3

300

Round 641 to the nearest ten

640

300

Solve: 2,471 + 368

2,839

300

Estimate the difference by rounding to the nearest tens: 875 - 357

880 - 360 = 520

400

What is the sum of 3 thousands, 8 hundreds, 5 tens, and 9 ones?

3,859

400

What is 9,472 written in expanded form?

9,000 + 400 + 70 + 2

400

Round 4,285 to the nearest hundred

4,300

400

Solve: 4,256 + 163

4,419

400

Estimate the difference by rounding to the nearest tens: 273 - 148

270 - 150 = 120

500

What is the sum of 5 thousands and 4 tens?

5,040

500

What is 8,402 written in expanded form?

8,000 + 400 + 2

500

Round 4,852 to the nearest hundred

4,900

500

Solve: 8,674 + 945

9,619

500

Estimate the difference by rounding to the nearest tens: 648 - 277

650 - 280 = 370

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