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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

4. Multiply Integers

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Exercise 17 Page 239

When multiplying real numbers, the product will be positive if the signs are the same and it will be negative if the signs are different.

160

Practice makes perfect

When multiplying real numbers, the product will be positive if the signs are the same and it will be negative if the signs are different. cc Same Sign & Different Signs (+)(+)=(+) & (+)(-)=(-) (-)(-)=(+) & (-)(+)=(-)In our case both numbers are negative, so the product will be positive.

-20(- 8)

MultNegNegOnePar

- a(- b)=a* b

20* 8

Multiply

160

We can verify this using a calculator.

Subchapter links

Guided Practice p.236

Independent Practice p.237-238

H.O.T. Problems p.238

Standardized Test Practice p.238-240

Extra Practice p.239

Common Core Review p.240