MULTIPLICATION & DIVISION OF INTEGERS 1-9 RULES FOR MULTIPLYING INTEGERS The product of two integers with the SAME SIGN is positive. The product of two.

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Presentation transcript:

MULTIPLICATION & DIVISION OF INTEGERS 1-9

RULES FOR MULTIPLYING INTEGERS The product of two integers with the SAME SIGN is positive. The product of two integers with DIFFERENT SIGNS is negative. The product of zero and any integer is zero.

RULES FOR DIVIDING INTEGERS The quotient of two integers with the SAME SIGN is positive. The quotient of two integers with OPPOSITE SIGNS is negative. The quotient of zero and any integer is N/A.

EXAMPLES FOR THE RULES… Multiplying numbers with the same sign Multiplying numbers with different signs Multiplying a number with zero 3(4) = 12-3(-4) = 12 -3(4) = -123(-4) = -12 3(0) = 0-3(0) = 0 *same rules apply for Division (dividing with 0 will = n/a)

REMEMBER… A negative times a negative makes a positive!!!!

EXAMPLES… 1.) 2(-6) ) 4(-5) ) -7(-2) 14 1.) 12 ÷ (-4) ) -100 ÷ ) -32 ÷ (-8) -3

WORD PROBLEM… After it is launched from a boat, Deep Rover descends 60 feet per minute. Where is it in relation to sea level three minutes after its launch? Directions: Use a number line to show repeated addition (-60) -180 Therefore, Deep Rover is at –180 ft., or 180 ft. below sea level.