integers presentation
TRANSCRIPT
IntegersAdd, Subtract, Multiply and Divide
1
Adding Integers
2
24
21
13
16
26
78
12
45
244
5
Adding Integers
6 +2 = −6 + −2 =
9 + 3= −9 + −3 =
6 +−3= −6 + 3 =
8 −8
12 −12
3 −3
Negative Numbers Positive Numbers
3
Adding IntegersNegative Numbers Positive Numbers
5 + 3=8 −7 + 4 = −3
−3+ −3 = −6 4 +−1=3
4
Adding Integers
5
Rules for Operations with Integers
Addition*Two integers with the same sign: Add them together and keep the sign.*Two integers with different signs: Subtract the two values and take the sign of the larger number.
Subtraction
Multiplication
Division
6
-1
-17
56
60
100
7
-30
-68
2
-73
7
Subtracting IntegersNegative Numbers Positive Numbers
5−2 =
9−3=
8−(−3)=
−5 − (−2) =
−9 − (−3) =
−8 − 3 =
8
3 −3
6 −3
11 −11
9
Subtracting IntegersNegative Numbers Positive Numbers
4−1=
−7 − (−5) =
−3− 4 =
6−(−2)=
=3
=−2
=−7
=8
10
Subtracting Integers
Rules for Operations with Integers
Addition* Two integers with the same sign: Add them together and keep the sign.* Two integers with different signs: Subtract the two values and take the sign of the larger number.
Subtraction* Subtraction is the same as: Adding the Opposite.* Make two changes to the problem: Change subtraction sign to addition sign. Change sign of second number to its opposite.
Multiplication
Division
11
12
Multiplying Integers
24
35
64
63
24
36
18
48
66
120
Multiplying Integers
4 *2=
4 *−2 =
−4 *2 =
−4 *−2 =
5*3=
−3*4 =
−2*−5 =
8
8
−8
−8
3*−3=
15
−12
10
−9
Rules for Operations with Integers
Addition* Two integers with the same sign: Add them together and keep the sign.* Two integers with different signs: Subtract the two values and take the sign of the larger number.
Subtraction* Subtraction is the same as: Adding the Opposite.* Make two changes to the problem: Change subtraction sign to addition sign. Change sign of second number to its opposite.
Multiplication*Two Integers with same signs: Multiply, Answer is positive.*Two Integers with different signs: multiply, Answer is negative.
Division 14
Dividing Integers
3
9
7
3
48
13
7
4
3
11
Dividing Integers
6 / 2=
−6 / 2 =
−6 / −2 =
15 / 3=
−18 / 2 =
−12 / −2 =
−3 / 3 =
3
5
−3
3
12 / 3=
−9
6
−1
4
Dividing Integers
Rules for Operations with Integers
Addition* Two integers with the same sign: Add them together and keep the sign.* Two integers with different signs: Subtract the two values and take the sign of the larger number.
Subtraction* Subtraction is the same as: Adding the Opposite.* Make two changes to the problem: Change subtraction sign to addition sign. Change sign of second number to its opposite.
Multiplication*Two Integers with same signs: Multiply, Answer is positive.*Two Integers with different signs: multiply, Answer is negative.
Division*Two Integers with same signs: Multiply, Answer is positive.*Two Integers with different signs: multiply, Answer is negative.
18