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What number times 2 plus 10 gives you 3?
negative 3.5
What is 2 times negative 2 minus 3 times 3 plus negative 1?
2 x -2 - 3 x 3 + -1 = (2 x -2) - (3 x 3) + (-1) = -4 - 9 - 1 = -14.
Rules in operation with signed numbers?
I. Addition 1. Positive + Positive = Positive ( +3 PLUS +3 = +6) 2. Negative + Negative = Negative (-3 PLUS -3 = -6) 3. Positive + Negative OR Negative + Positive Subtract the numbers then copy the sign of the number with greater value. (+5 PLUS -3 = +2) (-5 PLUS +3 = -2) II. Subtraction Change the sign of the subtrahend then the follow the rules of addition above. Examples: +5 MINUS -3 = +5 +3 = +8 +5 MINUS +3 = +5 -3 = +2 III. Multiplication 1. Positive x Positive = Positive (+3 times +5= +15) 2. Negative x Negative = Positive (-3 times -5 = +15) 3. Positive x Negative = Negative (+3 times -5 = -15) 4. Negative x Positive = Negative (-3 times +5 = -15) IV. Division Same rules as in multiplication Note: Like signs when multiplied or divided together = Positive Unlike signs when multiplied or divided together = Negative
What is the absolute value of negative 20 plus 6 times 3?
|-20 + 6*3| = |-20 + 18| = |-2| = 2
Is -3 to the -2 power positive or negative?
-1
