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Reptile [31]
3 years ago
5

103 + 21 = _ + 103 please help

Mathematics
2 answers:
lorasvet [3.4K]3 years ago
6 0
This is the commutative property of addition. It basically says, x+y=y+x.
To answer your question, 103+21=21+103
garri49 [273]3 years ago
3 0
103 + 21 = Unknown + 103 

Unknown = 21 

21+103
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