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AlexFokin [52]
3 years ago
14

Use mental math for 122+306

Mathematics
1 answer:
poizon [28]3 years ago
4 0
306+122=428
Because you add 6 & 2 in the ones place which is 8.
then 2 and 0 which is 2.
finally 1 and 3 which is 4


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