Year 7 - Pre Assessment of Mathematics 7

GCF of 10 and 50 is ...

• 10

• 5

• 2

• 50

GCF of 15 and 35 is ...

• 15

• 3

• 7

• 5

LCM of 2 and 14 is ...

• 28

• 7

• 2

• 14

LCM of 4 and 6 is ...

• 12

• 6

• 2

• 24

Which number is NOT a factor of 10?

• 1

• 2

• 3

• 5

Which number listed below is the prime number?

• 10

• 9

• 7

• 4

Which number listed below is NOT the prime number?

• 3

• 5

• 7

• 8

What is the prime factorisation of 15?

• $3\times3\times3$

• $2\times2\times5$

• $15$

• $3\times5$

Which one shows ALL of the factors of 6?

• $1,\ 6,\ 12$

• $1,\ 2,\ 3,\ 6$

• $1,\ 2,\ 3$

• $1,\ 6$

(a)