Number Flashcards
1
Q
Cube numbers
A
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
2
Q
Square numbers up to 15²
A
1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225
3
Q
BIDMAS or BODMAS
A
Brackets Index/Order Division Multiplication Addition Subtraction
4
Q
The reciprocal of a number n is . . .
A
1/n for example the reciprocal of 2 is 1/2 and the reciprocal of 5 is 1/5
5
Q
Product of primes
A
Use a cherry tree
6
Q
Prime factor decomposition
A
Use a cherry tree
7
Q
HCF highest common factor
A
Find the biggest number that goes into both numbers
8
Q
LCM lowest common multiple
A
The smallest number that is in the times tables of both numbers
