What is the sum of 10 + 10?
Adding Doubles
Flashcard
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Mathematics
•
1st Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
20
2.
FLASHCARD QUESTION
Front
What is the sum of 0 + 0?
Back
0
3.
FLASHCARD QUESTION
Front
What is the sum of 6 + 6?
Back
12
4.
FLASHCARD QUESTION
Front
What is the sum of 9 + 9?
Back
18
5.
FLASHCARD QUESTION
Front
What is the sum of 1 + 1?
Back
2
6.
FLASHCARD QUESTION
Front
What is the definition of addition?
Back
Addition is the mathematical operation of combining two or more numbers to get a total.
7.
FLASHCARD QUESTION
Front
What is the commutative property of addition?
Back
The commutative property states that changing the order of the numbers in an addition problem does not change the sum.
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