Integer Rules and Operations

Rules for adding, subtracting, multiplying, and dividing integers. Sample problems to practice each.

22 cards | Total Attempts: 195 | Created by mimifettucini | Last updated: Sep 17, 2015 | Total Attempts: 195

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When Adding A Positive And A Positive...

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Integer Operations

Front	Back
When adding a positive and a positive...	Just add the 2 numbers and use the same sign.
⁺8 + ⁺2 =	⁺10
When adding a positive and a negative...	Subtract the 2 numbers and use the sign of the number with the greater absolute value.
⁺8 + ^-12 =	^-4
When subtracting integers...	Change the minus sign to addition, and the second integer to its opposite, then follow addition rules. Don't change the first number.
^-5 - ⁺16 Changes to what?	^-5 + ^-16
^-15 - ^-20 =	⁺5
When multiplying or dividing integers with the same sign the answer is always...	Positive
When multiplying or dividing integers with different signs the answer is always...	Negative.
⁺12 x ⁺3 =	⁺36
^-15 x ⁺3 =	^-45
^-20 x ^-3 =	⁺60
When adding a negative and a negative...	Just add the numbers and use the same sign (negative.)
^-20 + ^-3 =	^-23
^-40 / ^-4 =	⁺10