Decimals
Detailed Explanation & Practice Questions
Concept Explanation
Decimals are fractions with denominators of 10, 100, 1000, etc. You must master the four operations with decimals, rounding off to specific decimal places, and quickly multiplying or dividing by 10, 100, and 1000 by shifting the decimal point.
Practice Questions
10 Questions
Q1
Multiply 1.9 by 2.
A.
0.4
B.
38.0
C.
4.8
D.
3.8
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Q2
Multiply 3.5 by 8.
A.
29.0
B.
2.8
C.
28.0
D.
280.0
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Q3
Multiply 1.6 by 7.
A.
112.0
B.
12.2
C.
1.1
D.
11.2
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Q4
Multiply 7.9 by 3.
A.
23.7
B.
2.4
C.
24.7
D.
237.0
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Q5
Multiply 6.8 by 8.
A.
544.0
B.
5.4
C.
55.4
D.
54.4
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Q6
Multiply 9.0 by 9.
A.
81.0
B.
8.1
C.
82.0
D.
810.0
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Q7
Multiply 9.2 by 7.
A.
644.0
B.
6.4
C.
65.4
D.
64.4
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Q8
Multiply 4.3 by 7.
A.
3.0
B.
301.0
C.
30.1
D.
31.1
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Q9
Multiply 2.2 by 2.
A.
0.4
B.
5.4
C.
4.4
D.
44.0
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Q10
Multiply 2.5 by 5.
A.
13.5
B.
1.2
C.
125.0
D.
12.5
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