Multiplying and Dividing Signed Numbers Rules for Multiplying/Dividing:MultiplyingThe product of two numbers with the same signs is positive. The product of two numbers with different signs is negative. Examples: (+2) x (+9) = +18 (-7) x (-8) = +56 (-5) x (+4) = -20 (+7) x (-2) = -14 If you have a long series of multiplications of negative values, remove … [Read more...] about Multiplying and Dividing Signed Numbers
Signed Numbers
Subtracting Signed Numbers
Subtracting Signed Numbers Rule for Subtracting: You can subtract a number by adding its opposite.When subtracting two numbers, change the sign of the number being subtracted and then follow the rules for adding signed numbers. (Subtracting a number is adding its opposite.) Examples:7 - (-3) = 7 + (+3) = 10 -10 - (-7) = -10 + (+7) = -3 -8 - (+6) = -8 + (-6) … [Read more...] about Subtracting Signed Numbers
Adding Signed Numbers
Adding Signed Numbers Rules for Adding:When you add two numbers with the same signs,add the absolute values, and write the sum (the answer) with the sign of the numbers. Examples: (+5) + (+7) = +12 (-6) + (-8) = -14 (9) + (5) = 14When you add two numbers with different signs,subtract the absolute values, and write the difference (the answer) … [Read more...] about Adding Signed Numbers