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D:\Working\TouchPad_Maths\TouchPad_Maths_1\Open_Files\Chap_03\Chap_03
\ 17-Nov-2025 Surender Singh Rothan Proof-7 Reader’s Sign _______________________ Date __________
number CombinAtionS
Look at the pattern and fill in the boxes to learn the combinations.
Combinations of 1 Combinations of 2
1 + 0 = 1 2 + 0 = 2
0 + 1 = 1 1 + 1 = 2
0 + 2 = 2
Number of combinations = 2 Number of combinations = 3
Combinations of 3 Combinations of 4
3 + 0 = 3 4 + = 4
2 + 1 = + 1 = 4
+ = 3 + = 4
+ = 3 1 + 3 =
+ = 4
Number of combinations = 4 Number of combinations = 5
Combinations of 5 Combinations of 6
5 + = 5 6 + = 6
4 + 1 = 5 5 + 1 = 6
+ = 5 + = 6
2 + 3 = 3 + 3 =
1 + = 5 2 + = 6
+ = 5 1 + 5 =
Number of combinations = 6 + = 6
Number of combinations = 7
Combinations of 7
7 + = 7 3 + = 7
+ 1 = 7 2 + 5 =
+ = 7 + 6 = 7
4 + 3 = + = 7
Number of combinations = 8
41
Addition up to 20
