Powers of 10
Whole Digits
Decimal Digits
Adding and subtracting decimals
Multiplying decimals
100

103 =

1,000

100

Write: Seventy-four thousand, two-hundred thirty-seven… in digits.

74,237

100

Write: one and twenty-one hundredths… in digits.

1.21

100

89.61 - 26.632 = 

62.978

100

1.2 x .6 =

.72

200

107 =

10,000,000

200

Write: Eleven-million, two-hundred thirty-one thousand, four-hundred twenty… in digits.

11,231,420

200

Write: six-hundred twenty-eight and five-hundred twenty-two thousandths… in digits

628.522

200

26 + 13.824 = 

39.824

200

0.8 x 0.9 =

0.72

300

3 x 102 =

300

300

Write: One-hundred thousand, six-hundred two… in digits.

100,602

300

Write: Thirty-four thousandths… in digits.

.034

300

33.97 - 8.851 = 

25.119

300

1.21 x .6 =

.726

400

5 x 102 + 1 x 101 + 9 =

519

400

Write: thirty-four million, one-hundred eleven thousand, two-hundred… in digits.

34,111,200

400

Write: Forty-three and twenty-three hundredths… in digits

43.23

400

83 + 77.841 = 

 160.841

400

32.8 x 1.2 =

39.36

500

6 x 106 + 4 x 10+ 2 x 103 + 5 x 102 = 

6,042,500

500

Two billion, fifty-one million, seven-hundred three thousand, fourteen… in digits.

2,054,703,014

500

3 billion, six-hundred twenty-one million, five-hundred thirty-two thousand, four-hundred four and one-hundred fifty-one thousandths… in digits.  

***DOUBLE POINTS***

3,621,532,404.151

500

63.03 - 59.688 = 

3.342

500

12.43 x 60 =

745.8

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