Rounding Decimals
Round .9 to the nearest whole.
1
Which is greater?
.98 or 1
1
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?
What is the little number hovering over the 10 called?
Example: 103
Exponent
5.987
What digit is in the hundredths place?
8
Extra 50 points: What is the value of the 8?
Round .25 to the nearest tenth.
.2
Which is greater?
5.15 or 5.150
They are equal
When I divide decimals by 10, what direction do I move my decimal point?
To the left
Extra 50 points: Why?
How would I write 10 x 10 x 10 x 10 x 10 in exponential notation?
105
How do you say 0.045 as a number name?
Forty-five thousandths.
Round 14.23 to the nearest tenth.
14.2
Which is greater?
2,014.91 or 2,104.910
2,104.910
7,538.5 x 10
75,385
What is 102 in standard form?
10 x 10
extra 50 points: What does that equal?
How do you say this as a number name?
53.14
Fifty-three and fourteen hundredths.
Round to the nearest hundredth
1.061
1.06
Which is Greater?
12.34 or 437
437
23 is one-tenth of...
230
What is 546 in expanded form?
500 + 40 + 6
Say as a number name:
16,506.9
Sixteen thousand five hundred six and nine tenths.
Extra Challenge!
890.4 / 102
8.904
Extra Challenge!
What is 563.8 x 100
56,380
What is one-tenth of 680?
68
Write as a base ten numeral:
7000 + 500+ 4 + 8/10 + 6/100
7,504.86
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.