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### Grade 1 - Mathematics3.9 Things to Know About Addition

 When we add two numbers, the result is called the sum. Example: 3+2 = 5. Here 5 is called the sum. When we add 0 to a number, the result is the number itself. Example: 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 Example: 8 + 8 = 16 If the numbers are interchanged, there is no change in the sum. Example: 3+4 = 4+3 = 7 Directions: Answer the following questions. Also write at least ten examples of your own.
 Q 1: FInd the missing number: 4 + ___ = 121298 Q 2: It does not matter what order you add numbers in, the sum is still the same.FalseTrue Q 3: When you add zero to a number, you get the _________double the numberzerowrong numbersame number Q 4: You have 6 erasers. You purchased 6 more. How many do you have now? This is a/an ___________addition problemsubtraction problem Q 5: When you add numbers together, the answer you get is called _______productsumdifferenceanswer Q 6: 4 + 6 = 6 + 4 = 10FalseTrue Q 7: 9 + 9 = 18TrueFalse Q 8: Is this true? 5+3 = 3+5YesNo Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!

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