Decimal Operations

Place Value

100

The digit in hundredths place

432.897

9

200

The 8 is sitting in what place value spot?

321.86

tenths

300

what is the value of the underlined digit?

876.31

hundredths

400

write the following number in standard form:

1 X 100,000 + 4 X 10,000 + 8 X 1,000 + 4 X 10 + 5 X 0.1 +  7 X .01

148,040.57

500

Write the following number in expanded form

803,607.4

8 X 100,000 + 3 X 1,000 + 6 X 100 + 7X1 + 4 X .1

Adding

100

Find the sum

24.23 + 103.7

127.93

200

Find the sum

50.9 + 12.76

63.66

300

Find the sum

76.09 + 201

277.09

400

Find the sum

1,485.3 + 56.7

1,542

500

Find the sum

879.348 + 22.09

902.248

Subtracting

100

Find the difference

13.12 - 1.02

11.92

200

Find the difference

345.67 - 22.99

322.68

300

Find the difference

534.27 - 19.3

514.97

400

Find the difference

865.731 - 52.31

813.421

500

Find the difference

600 - 436.14

163.86

Multiplying

100

Find the product

12.2 X 100

1,220

200

Find the product

78.42 X 1,000

78.420

300

Find the product

98.2 X 14

1,374.8

400

Find the product

563.2 X 4.3

2,421.76

500

Find the product

12.34 X 78.65

970.541

Dividing

100

Find the quotient

45.2 / 10

4.52

200

Find the quotient

78.9 / 100

0.789

300

Find the quotient

35.22 / 3

11.74

400

Find the quotient (rounded to the nearest tenth)

56.07 / 36

1.6

500

Find the quotient

325.6 / 0.55

592