Number

Question 1

Cube numbers

Answer 1

1³ = 1x1x1 = 1
2³ = 2 x 2 x 2 = 8
3³ = 3 x 3 x 3 = 27 
4³ = 4 x 4 x 4 = 64
5³ = 5 x 5 x 5 = 125
10³ = 10 x 10 x 10 = 1000

Question 2

Square numbers up to 15²

Answer 2

1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225

Question 3

BIDMAS or BODMAS

Answer 3

Brackets
Index/Order
Division
Multiplication
Addition
Subtraction

Question 4

The reciprocal of a number n is . . .

Answer 4

1/n for example the reciprocal of 2 is 1/2 and the reciprocal of 5 is 1/5

Question 5

Product of primes

Answer 5

Use a cherry tree

Question 6

Prime factor decomposition

Answer 6

Use a cherry tree

Question 7

HCF highest common factor

Answer 7

Find the biggest number that goes into both numbers

Question 8

LCM lowest common multiple

Answer 8

The smallest number that is in the times tables of both numbers