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Place value
Rounding
Add/Subtract
Roman Numerals
Algebra
100

What digit is in the ten thousands place?

23,570,835

7

100

Round to the nearest whole number:

32.8459

33

100

134,098 + 134 =

134,232

100

MCCLVII

1,257

100

132 + y = 453

y=321

200

What digit is in the billions place?

803,857,948,570

3

200

Round to the nearest tenth:

32.8459

32.8

200

10,358 +145 +1,354=

11,857

200

CMLXXI

971

200

357 = r + 174

r = 183

300

What digit is in the ten trillions place?

912,230,834,800,579

1

300

Round to the nearest billion:

41,410,850,875

41,000,000,000

300

6,003,045 - 14,305 =

5,988,740

300

MMCDIX

2,409

300

f - 136 = 134

f = 270

400

What digit is in the ten thousandths place?

0.135973

9

400

Round to the nearest thousand:

38,507.2038

39,000

400

31,084 + 0.1435 + 17 =

31,101.1435

400

Write as a roman numeral:

2,945


MMCMXLV

400

143 + d + 25 = 1,507

d=1,339

500

What digit is in the hundredths place?

0.301857

0

500

Round to the nearest whole number:

2,999.520

3,000

500

124 - 3.418 =

120.582

500

Write as a roman numeral:

1,607

MDCVII

500

p - 15.17 = 193.133

p=208.303