Rounding Decimals
Decimals, which is greater?
Multiply & Divide Decimals by 10
Exponential notation and expanded form
Place Value
100

Round .9 to the nearest whole. 

1

100

Which is greater? 

.98 or 1

1

100

When I multiply a decimal by 10, what direction do I move my decimal point? 

To the right. 

Extra 50 points: Why do I move it that direction? 

100

What is the little number hovering over the 10 called?


Example: 103

Exponent

100

5.987


What digit is in the hundredths place? 

8


Extra 50 points: What is the value of the 8? 

200

Round .25 to the nearest tenth. 

.2

200

Which is greater? 


5.15 or 5.150

They are equal

200

When I divide decimals by 10, what direction do I move my decimal point? 

To the left

Extra 50 points: Why? 

200

How would I write 10 x 10 x 10 x 10 x 10 in exponential notation? 

105

200

How do you say 0.045 as a number name? 

Forty-five thousandths. 

300

Round 14.23 to the nearest tenth.

14.2

300

Which is greater? 

2,014.91 or 2,104.910

2,104.910

300

7,538.5 x 10

75,385

300

What is 10in standard form? 

10 x 10

extra 50 points: What does that equal? 

300

How do you say this as a number name? 

53.14

Fifty-three and fourteen hundredths. 

400

Round to the nearest hundredth

1.061

1.06

400

Which is Greater? 


12.34 or 437

437

400

23 is one-tenth of...

230

400

What is 546 in expanded form? 

500 + 40 + 6

400

Say as a number name:


16,506.9

Sixteen thousand five hundred six and nine tenths. 

500

Extra Challenge! 


890.4 / 102

8.904

500

Extra Challenge! 


What is 563.8 x 100

56,380

500

What is one-tenth of 680?

68

500

Write as a base ten numeral: 

7000 + 500+ 4 + 8/10 + 6/100

7,504.86

500

How do you say this as a number name? 


5,609,987.09

Five million, six hundred nine thousand, nine hundred eighty-seven and nine hundredths. 

M
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