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Information about 01-04 & 05 Integers +, -, x, /

Published on August 30, 2008

Author: sadiesattic

Source: slideshare.net

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Integers Whole numbers and their opposites. Other vocabulary: Opposites 06/04/09 PH 01 4 & 5 Bitsy Griffin

Whole numbers and their opposites.

Other vocabulary:

Opposites

Absolute Value Distance a # is from 0. Always positive. Read as: The absolute value of . . . |-6| 06/04/09 PH 01 4 & 5 Bitsy Griffin

Distance a # is from 0.

Always positive.

Read as:

The absolute value of . . .

|-6|

Adding #’s w/same sign: Add absolute values and tack on the sign. Adding #’s w/ op signs: Find difference of absolute values Take sign of number that “appears” larger 06/04/09 PH 01 4 & 5 Bitsy Griffin

Add absolute values and tack on the sign.

Adding #’s w/ op signs:

Find difference of absolute values

Take sign of number that “appears” larger

subtracting #’s Add the opposite of the second # 06/04/09 PH 01 4 & 5 Bitsy Griffin

Add the opposite of the second #

AV on Calculator 2 nd 0 takes you to the catalogue. abs is absolute value. Hit enter. Make sure you close the (). 06/04/09 PH 01 4 & 5 Bitsy Griffin

2 nd 0 takes you to the catalogue.

abs is absolute value.

Hit enter.

Make sure you close the ().

Multiply Positive Integers Multiply or Divide any number of terms Answer is always positive 06/04/09 PH 01 4 & 5 Bitsy Griffin

Multiply or Divide any number of terms

Answer is always positive

X or / Mixed or Negative Integers Multiply or divide an even number of negative integers Answer is always positive Multiply or divide an odd number of negative integers Answer is always negative 06/04/09 PH 01 4 & 5 Bitsy Griffin

Multiply or divide an even number of negative integers

Answer is always positive

Multiply or divide an odd number of negative integers

Answer is always negative

Caution Watch out for negative integers raised to powers -3^2 (-3)^2 -3^3 (-3)^3 06/04/09 PH 01 4 & 5 Bitsy Griffin

Watch out for negative integers raised to powers

-3^2

(-3)^2

-3^3

(-3)^3

Review How do you add Integers with same sign? How do you add Integers with diff signs? How do you subtract integers? 06/04/09 PH 01 4 & 5 Bitsy Griffin

How do you add Integers with same sign?

How do you add Integers with diff signs?

How do you subtract integers?

Review In multiplication / division, how do you know the answer should be positive? Negative? 06/04/09 PH 01 4 & 5 Bitsy Griffin

In multiplication / division, how do you know the answer should be positive?

Negative?

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