Decimals Flashcards
1
Q
Calculate the difference between 38.612 and 13.87
A
24.742
2
Q
Subtract 2.317 from 3.9
A
1.583
3
Q
The lift in a tall building rises one floor in 13.9 seconds. If the lift rises 15 floors, how long will it take?
A
208.5 seconds
4
Q
Add 8.7 / 0.7 x 0.07 x 0.06
A
12.004
5
Q
Convert 1/8 into a decimal
A
0.125
6
Q
1.20 + 1.15
A
2.35
7
Q
8.28 + 9.46 + 0.84
A
18.58
8
Q
6.50-1.25
A
5.25
9
Q
58.0 - 0.32
A
57.68
10
Q
100.0 -1.85
A
98.15
11
Q
10 x 2.5
A
25
12
Q
10 x 0.25
A
2.5
13
Q
100 x 6.033
A
603.3
14
Q
10 x 0.003
A
0.03
15
Q
100 x 0.876
A
87.6
16
Q
1.25 x 5
A
6.25
17
Q
3.2 x 4
A
12.8
18
Q
5.12 x .34
A
1.7408
19
Q
3.123 x .18
A
0.56214
20
Q
4/12.48
A
3.12
21
Q
34.62/10
A
3.462
22
Q
34.62/ 100
A
0.3462
23
Q
156.4/10
A
15.64
24
Q
156.4/100
A
1.564
25
4/2.324
0.581
26
0.6/7.2
12
27
1.5/01530
0.102
28
9/52.29
5.81
29
12.0/12.48
1.04
30
0.02/4.486
224.3
31
0.26/8.8086
31.1
32
$93.05/15
6.20c
33
Write as a decimal: three and seven tenths...
3.7
34
Write as a decimal: Seventy-four thousandths
0.074
35
Write as a decimal: One and twenty-five thousandths
1.025
36
Write as a fraction or mixed number: 1.2
1 2/10
37
Write as a fraction/mixed number: 0.68
68/100
38
Write as a fraction/mixed number? 3.418
3 418/1000
39
Write as a fraction/mixed number? 0.07
7/100
40
Write as a fraction/mixed number? 6.15
6 15/100
41
80.6 + 4.75
85.35
42
12/3.682 + 75 + 3.8 + 0.00096
95.1816
43
9.86 - 3.54
6.32
44
8.394 - 3.52
4.874
45
2.198 - 3.852 + 2.053
0.399
46
When filling up my car with petroleum I have to put in 27.8L. I know that the tank holds 40L. How much petroleum did I have left in my tank before fuelling?
12.2L
47
The thickness of several pieces of metal were measured with a micrometer and found to be 0.083, 0.375, 0.1648 and 0.251mm. What is the combined thickness of all the pieces of metal?
0.8738mm
48
On a map the length of the road as 41.2km, but a surveyor found this measurement to be 1.37km too small. What was the true length of the road?
42.57km
49
The gap in a distributors point had to be 0.65mm. A motor mechanic measured the gap with a set of feeler gauges and found it to be 0.08mm too small. How wide was the spark gap?
0.57mm
50
An electrician needed copper wire with a diameter of 0.85mm. The nearest she had was 1.10mm diameter. Was it too thick or too thin, and baby how much?
Too thick by 0.25mm
