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Decimal Jeopardy *
Rounding/
Estimating
Adding/
Multiplying/
Subtracting
Dividing
Scientific
Notation
Misc.
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
Rounding/Estimating - 100
Round to the
nearest tenth:
23.4821
Rounding/Estimating – 100
23.5
Rounding/Estimating - 200
Round to the
nearest hundredth:
123.2518
Rounding/Estimating – 200
123.25
Rounding/Estimating - 300
Estimate the sum by
rounding to the nearest
whole numbers:
12.092 + 8.97
Rounding/Estimating - 300
12 + 9 = 21
Rounding/Estimating - 400
Estimate the product using
compatible numbers:
132.084 x 19.872
Rounding/Estimating - 400
130 x 20 = 2,600
Rounding/Estimating - 500
Estimate the quotient using
compatible numbers:
35.125 ÷ 5.98
Rounding/Estimating - 500
35 / 5 = 7
Adding/Subtracting - 100
23.021 + 12.123
Adding/Subtracting - 100
35.144
Adding/Subtracting - 200
27.21 + 17.198
Adding/Subtracting - 200
44.408
Adding/Subtracting - 300
43.092 - 21.02
Adding/Subtracting - 300
22.072
Adding/Subtracting - 400
98.18 - 97.99
Adding/Subtracting - 400
0.19
Adding/Subtracting - 500
123 - 71.283
Adding/Subtracting - 500
51.717
Multiplying/Dividing - 100
3.2 x 7
Multiplying/Dividing - 100
22.4
Multiplying/Dividing - 200
2.04 x 1.8
Multiplying/Dividing - 200
3.672
Multiplying/Dividing - 300
13 ÷ 2
Multiplying/Dividing - 300
6.5
Multiplying/Dividing - 400
6.03 ÷ 9
Multiplying/Dividing - 400
0.67
Multiplying/Dividing - 500
22.8 ÷ 0.4
Multiplying/Dividing - 500
57
Scientific Notation - 100
Convert to Standard Form:
4
2.18 x 10
Scientific Notation - 100
21,800
Scientific Notation - 200
Convert to Standard Form:
1.243 x
8
10
Scientific Notation - 200
124,300,000
Scientific Notation - 300
Convert to Standard Form:
-7
5.231 x 10
Scientific Notation - 300
0.0000005231
Scientific Notation - 400
Convert to Scientific Notation:
32,900,000,000
Scientific Notation - 400
3.29 x
10
10
Scientific Notation - 500
Convert to Scientific Notation:
0.000039
Scientific Notation - 500
3.9 x
-5
10
Miscellaneous - 100
In what place is the 6
located?
1,248.089621
Miscellaneous - 100
ten-thousandths
Miscellaneous - 200
Write the following
number in word form:
43.082
Miscellaneous - 200
forty three and eighty two
thousandths
Miscellaneous - 300
Compare the Decimals:
0.0231 ____ 0.2
Miscellaneous - 300
0.0231
<
0.2
Miscellaneous - 400
Is the following number in Scientific
Notation – why or why not?
23.8  10
6
Miscellaneous - 400
No because the first number must
be less than 10. It should instead
7
be written as 2.38 x 10
Miscellaneous - 500
Find a number between
the following 2 decimals:
3.02 and 3.03
Miscellaneous - 500
(many right answers)
ex: 3.025
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