Value, Place Value, Addition, Subtraction, Rounding and Estimating

Rounding

100

Round 32 to the nearest ten

30

200

Round 385 to the nearest hundred

400

300

Round 742 to the nearest ten

740

400

Round 845 to the nearest hundred

800

500

Round 997 to the nearest ten

1,000

Addition and Subtraction

100

245 + 386 =

631

200

521 - 234 =

287

300

648 + 195 =

843

400

417 - 239 =

178

500

800 - 362 =

438

Estimate sum and difference

100

Estimate the sum by rounding to the nearest hundred: 452 + 312

500 + 300 = About 800

200

Estimate the difference by rounding to the nearest ten:

657 - 442

660 - 440 = About 220

300

Estimate the sum by rounding to the nearest ten:

679 + 213

680 + 210 = About 890

400

Estimate the difference by rounding to the nearest hundred:

457 - 281

500 - 300 = About 200

500

Estimate the sum by rounding to the nearest ten: 

296 + 702

300 + 700 = About 1,000

Place Value/Value

100

What is the value and place value of the 3?

321

hundreds

300

200

What is the value and place value of the 4?

341

tens

40

300

What is the value and place value of the 7?

759

hundreds

700

400

What is the value and place value of the 9?

1,398

tens

90

500

What is the value and place value of the 3?

1,386

ones

3