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WorksheetsY7 Week 1-4 Review
Total questions: 22
Worksheet time: 44mins
Name
Class
Date
1.
Find the LCM of 12 and 16...
a)
48
b)
36
c)
64
d)
96
2.
Find the HCF of 12 and 16...
a)
2
b)
4
c)
6
d)
8
3.
What is 34 as a product of its prime numbers in ascending order
a)
2x17
b)
3x17
c)
17x2
d)
3x4x2
4.
A number is expressed as
23 x 33 x 5.
What is the number?
a)
11
b)
72
c)
270
d)
1080
5.
How should you express 96 as a product of its prime factors?
a)
32 x 3
b)
3 x 25
c)
2 x 48
d)
1 x 25 x 3
6.
What is 720 as a product of its prime factors?
a)
24 x 32 x 5
b)
16 x 33 x 5
c)
23 x 42 x 3
d)
26 x 7
7.
Find the LCM of 120 and 150.
a)
300
b)
360
c)
450
d)
600
8.
Find the HCF of 32 and 80.
a)
8
b)
16
c)
24
d)
32
9.
What is the HCF of 72 and 120
a)
22
b)
24
c)
26
d)
28
10.
What is the LCM of 72 and 108?
a)
144
b)
216
c)
280
d)
312
11.
Ben exercises every 12 days and Isabel every 8 days. Ben and Isabel both exercised today. How many days will it be until they exercise together again?
a)
4
b)
6
c)
12
d)
24
12.
210 written as a product of its prime factors is 2x3x5x7.
a)
True
b)
False
13.
Find the HCF and LCM of 15, 20 and 35.
a)
HCF = 5 and LCM = 420
b)
HCF = 5 and LCM = 402
c)
HCF = 15 and LCM = 10500
d)
HCF = 5 and LCM = 10500
14.
Is 17 a prime or composite number?
a)
prime
b)
composite
15.
What is the only even number that is prime?
a)
1
b)
2
c)
4
d)
10
16.
A prime number has how many factors?
a)
More than 2
b)
Can be any amount depending on the number
c)
Exactly 2
d)
Only 1
17.
(7 + 41) ÷ 2 – 15
a)
19
b)
9
c)
25
d)
3
18.
18 + (6 – 2) × 2
a)
26
b)
29
c)
44
d)
40
19.
(82 ÷ 2) × 3 – 17
a)
206
b)
100
c)
106
d)
5
20.
15 + 7 × 2 – 11 + 35=
a)
38
b)
251
c)
53
d)
50
21.
15 x 19 + 18 ÷ 6 =
a)
250
b)
199
c)
400
d)
288
22.
2 + (92 - 4)
a)
16
b)
77
c)
79
d)
88
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