Question
Calculate 2 + 10 = _______.
- 10
- 12
- 13
- 22
Hint:
Obtain the sum from the given addend and the augend using the fact patterns.
The correct answer is: 12
Using fact patterns:
Plus Two patterns shifts the number to next even number.
>>> Therefore, adding the ten to the two shifts 10 to the next even number 12.
>>> Hence, the sum is 2 + 10 = 12.
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