Answer: the answer is 40 because 20 plus 20 equals 40
20 + 20 = 40
If you add 2 + 2 = 4 (the number values in the tens place) and 0 + 0 = 0 (the number values in the ones place). Put the 4 in tens place and 0 in the ones place which is 40
Hope this helped!
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