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# BY : LATIA CLARKE - PowerPoint PPT Presentation

ADD,SUBTRACT AND MULTIPLY AND DIVIDE INTEGERS. BY : LATIA CLARKE. WHAT ARE INTEGERS. Integers are any numbers from a set. Integers are also negative and positive numbers. Positive integers are greater than zero. They can be written with or without a plus sign

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BY : LATIA CLARKE

• Integers are any numbers from a set.

• Integers are also negative and positive numbers.

• Positive integers are greater than zero.

• They can be written with or without a plus sign

• Negative are integers less than zero.

• They are written with a minus sign.

• Zero is nether a positive or a negative.

• Multiplication is the same as repeated addition.

• When you multiply with a negative and a positive the sign is different.

• The product of two positive integers is positive

• You can use a pattern to find the product of two negative integers.

• Negative * positive = negative

• Negative * negative = positive

• ex. (2)(-3)= -6

• When finding the quotient of two integers you can use related multiplication sentence.

• Division of Integers is similar to division of whole numbers (both positive) except the sign of the quotient needs to be determined.

division

multiplication

• -35 / -1

• -117 / -3

Lets try and solve these problems. then you will get a quiz to see what you know. Then when you are done I want you to tell me the difference between dividing and multiplying integers and don’t worry we are almost done.

• 35/-1

Step 1.how many times can 1 go into 3?

Step2.so you carry the 3 and subtract and you get zero.

Step 3. then you do the same with the 5.

• -117/-3

• Step 1. you line up 117 and 3. then you multiply.

• Step 2.You start from the back. 7(3) is 21.so you leave the 1 and carry the 2.

• Step 3. 1(3) is 3 plus 2 is 5. then 1(3) is 3 so you get 3. then your answer is 351.

I hope you were paying attention because now you have a quiz .there is no help on this. GOOD LUCK

DIRECTIONS: DIVIDE THE TWO INTEGERS AND DECIDE IF IT IS A NEGATIVE AND A POSITIVE.

• 45/-2

a.22

b.-22

c.33

d.45

• Divide the two integers

• 188/2

• A.94

• B.-94

• C.87

• D.45

• 128/4

• A.-32

• B.32

• C.48

• D.12

CONGRADULATIONS you have finished the quiz.