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Addition Fact
When we add the same numbers in any order, the answer does not change.
+ =
3 + 4 = 7
+ =
4 + 3 = 7
6 Add the numbers.
(a) 3 + 4 = = 4 + 3 (b) 2 + 6 = 6 + 2 =
(c) 7 + 2 = 2 + 7 = (d) 0 + 6 = = 6 + 0
(e) 8 + 1 = = 1 + 8 (f) 5 + 3 = = 3 + 5
Little Genius!
Fill in the blanks.
(a) 5 + = 6 = 1 + 5 (b) + 3 = 5 = 3 + 2
(c) 0 + = 9 = 9 + 0 (d) 4 + = 8 = + 4
Number Fact
We can add different combinations of two numbers to get the same answer. For
example, 1 + 7 = 8 and 2 + 6 = 8.
This is called number fact. Look at the number fact for 8.
8 + 0 = 8
7 + 1 = 8
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