Posted by **sofia** on Tuesday, June 18, 2013 at 2:39pm.

how is 2.3-20=17.7 reasonable

- decimals -
**Ms. Sue**, Tuesday, June 18, 2013 at 2:58pm
It is not reasonable. When you take a number from a smaller number, the difference is negative.

Negative 17.7 is reasonable.

- decimals -
**isabella**, Tuesday, September 10, 2013 at 8:12pm
It is not reasonable because when I added 17.7 and 20 I got 2.3

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