Place Value
Rounding
Estimation
Adding
Subtracting
100

What digit is in the hundreds place in 7,432

4

100

Round 809 to the nearest hundred

800

100

What is the difference between rounding and front-end rounding

Front-end rounding is when you round to the first/front digit

Regular rounding could be to any place value

100

54 + 31

85

100

87 - 34

53

200

What digit is in the tens place in 35,982

8

200

Round 54,902 to the nearest thousand

55,000

200

Estimate 490 + 310

800

200

107 + 892 = 

999

200

654 - 523

131

300

What is the place value of the 9 in 29,870

thousands

300

Round 432,989 to the nearest tens

432,990

300

Estimate 850 + 449

1300

300

12,432 + 364 = 

12,796

300

783 - 568

215

400

What is the place value of the 6 in 760,832

ten thousands

400

Round 4,500 to the nearest thousand

5,000

400

Estimate  703 - 490

200

400

845 + 269

1,114

400

6,462 - 4,872

1,590

500

What is the place value of the 7 in 78,234,190

ten millions

500

Round 99,999 to the nearest thousand

100,000

500

Estimate 1,083 - 974

0

500

9,354 + 8,329

17,683

500

1,204 - 856

348