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love history [14]
3 years ago
11

20 +63 without rewriting find the sum using mental math

Mathematics
2 answers:
tankabanditka [31]3 years ago
7 0
20+63.


To add in your head, just take the 3 in 63 and add the 0 from the 20 to it. That leaves 3 right? And then take the 6 in 63 and add the 2 from the 20. This comes out to:

83
Soloha48 [4]3 years ago
7 0
83 is the answer hope I helped you
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