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Number Theory & Computation
Number Theory & Computation
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A #review of the first two topics in the #math #CXC syllabus
Flashcards
34 cards
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Practice quiz
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Questions
34
Answers
1
Approximate 456.79 to
2 significant figures
50
46
450
460
2
3(5+7) is an example of which
law
?
Commutative
Associative
Identity
Distributive
3
What
percentage
of 40 is 8?
20
5
150
32
4
Convert the following
mixed number
to an improper fraction
14/5
22/4
13/5
21
5
What
fraction
of the shape is shaded?
2/3
3/5
2/5
1/3
6
Find the
LCM
of 6 and 8
48
4
2
24
7
What is 2/3 of 60?
40
45
20
30
8
Convert the following fraction to a
decimal
.
0.5
5.8
0.625
0.58
9
The
exact
value of 6 ÷ (0.0003) is
2 , 000
20 , 000
200
200 , 000
10
Convert the following fraction to a
percentage
60%
15%
55%
167%
11
What is 0.000568 in
standard form
?
0.000568 x 10-4
5.68 x 10-4
5.68 x 104
0.000568 x 103
12
Which of the following is a
prime
number?
2
4
6
1
13
Find the
HCF
of 12 and 30
2
6
12
120
14
Solve the following using
BODMAS
0
3
5
6
15
Convert the following percentage to a
fraction
IN ITS LOWEST TERMS
3.4/10
17/50
34/10
16/50
16
List the
factors
of 20
1, 2, 4, 5, 10, 20
1, 20
1, 5, 20
1, 2, 5, 20
17
Multiply
the following fractions
3/10
5/9
8/15
5/20
18
3x4 = 4x3 is an example of which
law
?
Identity
Commutative
Distributive
Associative
19
Solve the following fractions question
15/20
3/10
8/15
6/20
20
Natural
numbers start with the number...
1
0.5
0
2
21
Which of the following is a
square
number?
6
8
7
9
22
Convert the following
improper
fraction to a mixed number
6
13 1/3
1 3/6
5 1/3
23
Whole
Number are represented by the letter....
W
R
Q
N
24
Convert the following percentage to a
decimal
0.26
0.026
26.0
2.6
25
If
3n
is an odd number, which of the following is an even number?
3n - 2
3n + 2n
3n - 1
3n + 2
26
Split $450 in the following
ratio
$180 : $270
$300 : $150
$150 : $300
$270 : $180
27
An example of an
irrational
number is...
6.9
3
½
π
28
5+(7+2) = (5+7)+2 is an example of which
law
?
Distributive
Associative
Commutative
Identity
29
Approximate 456.79 to
1 decimal place
456.7
456.8
4.5679 x 102
500
30
Four people can paint a fence in 3 hours. How long will it take six people to paint it?
4.5 hours
2.5 hours
2 hours
3 hours
31
Subtract
the following fractions
4 4/15
5 1/15
4 1/8
4 4/8
32
The value of
29.94 x 0.5
is approximately
15
1 . 5
150
0 . 15
33
One banana cost $1.50. How much would
four
bananas cost?
$4.50
$6.00
$3.00
$0.38
34
1+0 = 0+1 is an example of which
law
?
Associative
Commutative
Identity
Distributive
