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Grade 1 - Mathematics
3.9 Things to Know About Addition
When we add two numbers, the result is called the sum.
: 3+2 = 5. Here 5 is called the sum.
When we add 0 to a number, the result is the number itself.
: 4 +0 = 4. here when we add 0 to 4, the sum is the number.
When we add two same numbers we get a double
: 8 + 8 = 16
If the numbers are interchanged, there is no change in the sum.
: 3+4 = 4+3 = 7
Answer the following questions. Also write at least ten examples of your own.
: When you add numbers together, the answer you get is called _______
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