Chapter 1 : Grade 7 Integer Review

“When subtracting something that isn’t there use a zero pair”

**Examples:-3 - (-7)=**

-3 - 7 =

3 - 7 =

3 + 7 =

-3 + 7 =

Chapter 2 : Multiplying Integers

Sign rule: when you are multiplying integers and you have 0 or even numbers of negatives, the answer is positive. When you are multiplying integers and you have odd numbers of negatives, the answer is negative.

Sign rule: when you are multiplying integers and you have 0 or even numbers of negatives, the answer is positive. When you are multiplying integers and you have odd numbers of negatives, the answer is negative.

**Examples:**

(+2) x (+3)=

(+2) x (-3)=

(-2) x (+3)=

(-2) x (-3)=

Chapter 3 : Dividing Integers

Partitive Division is how many groups are there in a number.

6 ÷ 2 =

Quotative division is how to share a number into groups

6 ÷ 2 =

6 ÷ 2 =

Sign rule:

Even: when numbers of negative integers are even the answer is positive

Even: when numbers of negative integers are even the answer is positive

Odd: when numbers of negative integers are odd the answers is negative

6 ÷ 2 = 3 There are no negative integers so that means the quotient is positive.

-6 ÷ (-2) = 3 There are two (even) negative integers that means the quotient is positive.

(-6) ÷ 2 = -3 There is a negative integer (odd) that means the quotient is negative.

6÷(-2) = -3 There’s one negative integer that means the quotient is negative.

Chapter 4 : Order of Operations with Integers

(+5) x (-3) + (-6) ÷ (+3)

-15 + (-6) ÷ (+3)

-15 + -2

-17

When answering Order of Operations remember B.E.M.D.A.S

B = Brackets

E = Exponent

M = Multiplication

D = Division

A = Addition

S = Subtraction

1. First answer numbers with brackets Ex. ( ) or [ ]

2. Then Answer Multiplication and Division

3. Then Addition and Subtraction

6 ÷ 2 = 3 There are no negative integers so that means the quotient is positive.

-6 ÷ (-2) = 3 There are two (even) negative integers that means the quotient is positive.

(-6) ÷ 2 = -3 There is a negative integer (odd) that means the quotient is negative.

6÷(-2) = -3 There’s one negative integer that means the quotient is negative.

Chapter 4 : Order of Operations with Integers

(+5) x (-3) + (-6) ÷ (+3)

-15 + (-6) ÷ (+3)

-15 + -2

-17

When answering Order of Operations remember B.E.M.D.A.S

B = Brackets

E = Exponent

M = Multiplication

D = Division

A = Addition

S = Subtraction

1. First answer numbers with brackets Ex. ( ) or [ ]

2. Then Answer Multiplication and Division

3. Then Addition and Subtraction

## No comments:

## Post a Comment