Rules for doing the different integer operations
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Add two positive integers | Add the numbers and the result is positive
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| Add two negative integers | Add the numbers and the result is negative
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| Add a positive integer and a negative integer | Subtract the numbers and use the sign of the bigger* number (the number with the larger absolute value
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| Add a negative integer and a positive integer | Subtract the numbers and use the sign of the bigger* number (the number with the larger absolute value
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| Add opposite integers | The sum will always be 0
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| Add a positive integer and 0 | The sum will be the same positive integer
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| Add a negative integer and 0 | The sum will be the same negative integer
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| Subtract a positive integer minus a smaller positive integer | This is the same as adding a positive integer and a smaller negative integer. Subtract the numbers and the result will be positive.
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| Subtract a positive integer minus a larger positive integer | This is the same as adding a positive integer and a "larger" negative integer. Subtract the numbers and the result will be negative.
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| Subtract a positive integer minus a negative integer | This is the same as adding a positive integer and a positive integer. Add the numbers and the result will be positive.
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| Subtract a negative integer minus a positive integer | The is the same as adding two negative integers. Add the numbers and the result will be negative.
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| Subtract a negative integer minus a negative integer | This is the same as adding a negative integer and a positive integer. Subtract the numbers and use the sign of the bigger* number (the number with the larger absolute value
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| Subtract an integer minus the same integer | This will be the same as adding opposite integers and the result will be 0.
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| Multiply a positive integer by a positive integer | Multiply the two numbers and the result (product) will be positive.
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| Multiply a positive integer by a negative integer | Multiply the two numbers and the result (product) will be negative. (it doesn't matter if the "bigger" number is positive or negative)
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| Multiply a negative integer by a positive integer | Multiply the two numbers and the result (product) will be negative. (it doesn't matter if the "bigger" number is positive or negative)
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| Multiply a negative integer by a negative integer | Multiply the numbers and the result (product) will be positive.
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| Multiply a positive or a negative integer by 0 | The product will always be 0
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| Divide a positive integer by a positive integer | Divide the numbers and the result (quotient) will by positive.
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| Divide a positive integer by a negative integer | Divide the two numbers and the result (quotient) will be negative.
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| Divide a negative integer by a positive integer | Divide the two numbers and the result (quotient) will be negative.
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| Divide a negative integer by a negative integer | Divide the two numbers and the result (quotient) will be positive.
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| Divide 0 by any integer | The quotient will be 0.
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| Divide any integer by 0 | This cannot be done. The quotient is said to be "undefined".
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Created by:
mrvanlaan
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