Number Bonds
The term number bond means literally bonding two numbers together
It is very useful to know the number bonds of 10, 20 and 100
Number Bonds to Ten
0 + 10
1 + 9
2 + 8
3 + 7
4 + 6
5 + 5
6 + 4
7 + 3
8 + 2
9 + 1
10 + 0
Number Bonds to Twenty
0 + 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 to One Hundred in 10s
0 + 100
10 + 90
20 + 80
30 + 70
40 + 60
50 + 50
60 + 40
70 + 30
80 + 20
90 + 10
100 + 0
Harvard Reference for this page:
Heather Y Wheeler. (2015). Number Bonds. Available: http://www.tiffanymacbeth.com/Maths/number_bonds.htm. Last accessed
Maths Topics
Place Value Adding Number Bonds Mental Addition Adding by Chunking Column Addition Subtracting Subtracting by Chunking Column Subtraction Mental Subtraction Roman Numerals
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