What two numbers will give you a product of 64 and a quotient of 4?

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What two numbers will give you a product of 64 and a quotient of 4?

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Presentation transcript:

What two numbers will give you a product of 64 and a quotient of 4? Warm-Up What two numbers will give you a product of 64 and a quotient of 4?

Solution 16 and 4 16 x 4 = 64 16 ÷ 4 = 4

Adding Integers Lesson 3-4

Adding Integers We can use positive and negative counters to model the addition of integers. Positive Integer Negative Integer A positive integer paired with a negative integer form a zero pair. The value of a zero pair is 0.

Add -2 + (-4) = -6

Add 5 + 6 = 11

Add -3 + (-5) = -8

Add -3 + -2 = -5

Adding Integers with like signs. Do you notice a pattern or rule? Adding Integers with like signs. - When the signs are the same, add the numbers together and keep the sign.

= -2 Add -5 + 3 Remove all the zero pairs.

= 3 Add 4 + (-1) Remove all the zero pairs.

= -1 Add -6 + 5 Remove all the zero pairs.

= -4 Add 3 + (-7) Remove all the zero pairs.

Did you notice a pattern or rule? Adding integers with unlike signs. - When the signs are different, subtract the integers and keep the sign of the larger digit.

Let’s try a few examples using the rules for adding integers. -20 -6 12 -2 -38 13 1) -8 + 8 = 2) -9 + -11 = 3) 13 + (-19) = 4) 7 + 5 = 5) -12 + 10 = 6) -22 + (-16) = 7) 18 + (-5) =

Summary Adding Integers with like signs. - When the signs are the same, add the numbers together and keep the sign. -9 + -3 = -12 Adding integers with unlike signs. - When the signs are different, subtract the integers and keep the sign of the larger integer. -9 + 3 = -6