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Worksheets

mathematics

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

What is the Greatest Common Factor of 35 and 49

a)

5

b)

7

c)

1

d)

17

2.

Which of these groups of numbers are factors of 15?

a)

2, 3, 15

b)

1, 3, 5, 15

c)

1, 2, 4, 5

d)

1, 5, 10, 15

3.

What is the GCF of 14 and 22?

a)

7

b)

21

c)

14

d)

2

4.

Which of the following statements is true about prime number?

a)

It's greater than 1 that has more than 2 factors.

b)

It's a whole number greater than 1 that has only 2 factors: 1 and itself.

c)

It's a natural number.

d)

Prime numbers are odd numbers.

5.

What is the least common multiple and greatest common factor of 35 and 42?

a)

LCM- 2 x 3 x 5 x 7 = 210 , GCF- 7

b)

LCM- 2 x 3 x 5 x 7 = 210, GCF- 7 x 7 = 49

c)

LCM- 2 x 3 x 5 x 7 x 7 = 1,470, GCF- 7

d)

LCM- 2 x 3 x 5 x 5 x 7 = 1, 050, GCF- 7 x 7= 49

6.

Joe has listed the first 4 multiples of 7 as:

7, 14, 20, 28

Which one is incorrect?

a)

7

b)

14

c)

20

d)

28

7.

Which number is a factor of 24

a)

48

b)

36

c)

11

d)

12

8.

Convert 512 to an index number with base 8

a)

83

b)

64

c)

84

d)

8 x 8 x 8

9.
Simplify: 4x2y × 9xy2
a)
36x3y3
b)
36xy3
c)
13x2y2
d)
13x3y3
10.
a7×a4÷a5
a)
a7
b)
a6
c)
a4
d)
a11
11.
Evaluate  12 + 22 + 32
a)
6
b)
12
c)
14
d)
11
12.

Find the product of: 23x45

a)

1025

b)

935

c)

1035

d)

825

e)

835

13.

Adyan has 67 marbles. He gave away 29 of his marbles. How many marbles does he have left?

a)

46 marbles

b)

38 marbles

c)

32 marbles

14.

What place is the 5 in?

174,532

a)

ten thousands

b)

hundreds

c)

thousands

d)

not here

15.

What place is 7 in?

745,321

a)

ones

b)

tens

c)

hundreds

d)

hundreds thousands

16.

What is the sum of the total values of the underlined digits in the number?


35692

a)

3000 + 600 = 3600

b)

30,000 + 600 = 30,600

c)

3000 + 60 = 3060

d)

3000 + 60 = 30600

17.

Which digit is in the tens of tens of thousand place in the number 245,367,089

a)

9

b)

8

c)

7

d)

6

18.

Choose the number that matches these words.


Three hundred fourteen million one thousand seventy-eight.

a)

3,141,078

b)

314,178

c)

314,001,078

d)

314,100,078

19.

What is 137,289 written in word form?

a)

One hundred thirty seven two hundred eighty nine

b)

One hundred thirty seven thousand two eighty nine

c)

One hundred thirty seven thousand two hundred eighty nine

d)

Thirty seven thousand two hundred eighty nine

20.

Write this number in expanded form.

twenty-five thousand, four hundred eight

a)

20,000 + 5,000 + 400 + 80

b)

20,000 + 500 + 40 + 8

c)

2,000 + 500 + 40 + 8

d)

20,000 + 5,000 + 400 + 8