Multiplying and Dividing Signed Numbers
Multiplying and Dividing Signed NumbersRules for Multiplying/Dividing:Multiplying The 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) …
Subtracting Signed Numbers
Subtracting Signed NumbersRule 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 a…
Adding Signed Numbers
Adding Signed NumbersRules for Adding:When you add two numbers with the same signs,add the absolute values, andwrite the sum (the answer) with the sign of the numbers. Examples: (+5) + (+7) = +12 (-6) + (-8) = -14 (9) + (5) = 14When you add two numbers …