A multiple of a number is what you get when
you multiply that number.
Multiplying gives you multiples.
Multiples of 7
14 21 28 35
42
= 7
7 x 17 x 2 7 x 37 x 4 7 x 5 7 x 6
Multiples of 4 =
4
8
12 16 20
24
4 x 14 x 2 4 x 34 x 4 4 x 5 4 x 6
Multiples of 11 =
11 22 33 44 55
66
11 x11
1 x 211 x 3
11 x 411 x 511 x 6
Multiples can also be negative numbers as well.
Multiples of 3
3
6
9
12
-12 -9 -6 -3 0
3 x 03 x 13 x 2 3 x 33 x 4
3 x -4
3 x -3
3 x -2
3 x -1
Factors are numbers that can multiply to make
your number. Factors come in pairs but are
listed in order, each number being listed once.
The numbers that multiply to make 10 are
1 x 10
and
2x5
So we list the factors of 10 as 1, 2, 5, 10.
The factors of 15 are
1, 3, 5, 15
The factors of 9 are
1, 3, 9
The factors of 24 are
1, 2, 3, 4, 6, 8, 12, 24
1.
2.
3.
4.
5.
6.
7.
8.
The
The
The
The
The
The
The
The
factors of 6? 1, 2, 3, 6
first five multiples of 8? 8, 16, 24, 32, 40
first five multiples of 12? 12, 24, 36, 48, 60
factors of 20? 1, 2, 4, 5, 10, 20
factors of 14? 1, 2, 7, 14
factors of 33? 1, 3, 11, 33
first five multiples of 4.5? 4.5, 9, 13.5, 18, 22.5
factors of 100 that are also multiples of 2?
2, 4, 10, 20, 50, 100
When a number is squared we multiply it by
itself
__________.
3 squared is 3 x 3
5
5 squared is 5 x ___
12 squared is 12 x 12
___
We write squared as a small 2 above and to the
right of the number.
7 squared is written 72
Number Squared
02
12
22
Formula
0x0
1x1
2x2
32
42
52
3x3
4x4
62
72
82
92
102
Answer
0
1
4
You use a square root to work out what a
number was before it was squared.
A square root is the opposite of a square.
The square root of 100 is 10 because 102 = 100
52 = 25
The square root of 25 is 5 because ___
92 = ___
9 because ___
81
The square root of 81 is ___
You need to know the square roots of;
144, 121, 100, 81, 64, 49, 36, 25, 16, 9, 4, 1, 0