reyeskay reyeskay

30-10-2016
Mathematics

contestada

Please help me with numbers 18-20 please

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Garrett121 Garrett121

30-10-2016

The is answer is -2. With these problem you should do Keep Change Change. If you have done it like this the problem would look like this.
18+-20=
This would more easy because that all thing you need to know is adding negatives.

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