Number bonds

L.I: To learn number bonds to twenty

Number bonds are 2 numbers that can create a tidy number.

These are the different number bonds up to 20.
1 & 19
2 & 18
3 & 17
4 & 16
5 & 15
6 & 14
7 & 13
8 & 12
9 & 11
10 & 10
11 & 9
12 & 8
13 & 7
14 & 6
15 & 5
16 & 4
17 & 3
18 & 2
19 & 1
20 & 0

Number bonds are good for knowledge because when someone asks a maths question about a number bonds it can be answered easily.