What are the rules for adding integers?

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Presentation transcript:

What are the rules for adding integers? If the signs are the same, add and keep the same signs. If the signs are different, subtract and keep the sign of the larger number.

-48 + 102 = ? 54

-89 + -76 = ? -165

144 ÷ -12 = ? -12

−𝟐𝟔 + 𝟐𝟏 = ? 47

The elevation of the highest mountain in Georgia is 6,700 ft above sea level and the trench in the Atlantic Ocean off the coast of Savannah, GA is 3,300 ft below sea level. What is the distance between them? 10,000 ft

-8 x -4 x -2 =? -64

On Tuesday the mailman delivers 3 checks for $5 each and 2 bills for $2 each. If you had a starting balance of $25, what is the ending balance? $36

It was a very freaky weather day It was a very freaky weather day. The temperature started out at 9°C in the morning and went to -13°C at noon. It stayed at that temperature for six hours and then rose 7°C. How far below the freezing point (0°C) was the temperature at 6 p.m.? 6˚

4 -6 + 4 = -2 How many zero pairs are represented? Write a mathematical expression that represents the integer chips below. Red is negative and yellow is positive. How many zero pairs are represented? -6 + 4 = -2 4

3 x -4 x -3 x 2 = ? 72

Write the rules for multiplying and dividing integers. Positive times positive = positive Negative time negative = positive Positive times a negative = negative 4.Negative times a positive = negative

The stock market lost $15 a day for 4 days and then on the 5th day it gained $150. What was the total gain or loss for the week? Gained $90

−𝟕 𝐱 𝟗 = ? 63

76 – (-23) = ? 99

-95 – (-37) = ? -58

Explain how to subtract integers in three words. Add the opposite