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Vedmedyk [2.9K]
3 years ago
13

Kelly subtracted 2.3 from 20 and got 17.7. explain why this answer is reasonable

Mathematics
2 answers:
nignag [31]3 years ago
7 0
The correct answer to this is that 2.3 -20=-17.7 the answer is resonable because if you go on a number line then you would see that if you start a 2.3 and subtract 20 spaces you get to ----17.7
netineya [11]3 years ago
3 0
If 20-2.3=17.7, then if you add 17.7 to 2.3. it equals 20 which is called the communicative property because whatever you add or subtract, the answer is the same
17.7+2.3=2.3+17.7
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