objective - to multiply integers. signs are the same signs are different simplify. 1) 2) 3) 4) 5) 6)
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Objective - To multiply integers.
Signs arethe same
Signs aredifferent
Simplify.
1) 2 3
2) 4 8
3) 6(4)
4) 7( 8)
5) 2 5
6) 3( 10)
6
32
24
56
10
30
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Simplify the following.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
7( 4)
5(11)
28
55
8( 3) 24
6 8 48
9( 4) 36
8 8
9( 7)
64
63
6( 7) 42
2( 3) 9
2(5) 25
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Multiplying Multiple Integers
3( 4)( 5) 4( 3)( 2) 12 ( 5)
6012 ( 2)
24
Another way...
Odd # of Negatives = Negative
Even # of Negatives = Positive
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Simplify the following.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
5( 3)
8( 4)
15
32
2( 3)(5) 30
2( 1)(6) 12
7( 2)( 3) 42
5( 1)( 1)(4)
( 3)( 2)(6)(2)
20
72
1( 7)( 2)( 1) 14
( 2)(4)( 3) 24
(5)( 2) 10
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Objective - To divide integers.
Same Sign = Positive
Different Sign = Negative
Simplify.1)
2)
3)
4)
5)
6)
8 ( 2)
10 ( 5)
24 3
18 6
72 ( 8)
15 ( 3)
4
2
8
3
9
5
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Evaluate the expression below if x = -3 and y = 6.
1)
2)
3)
4)
5)
6)
y x
x y
22x y
5y x
8xy
2yx
6 ( 3) 2
3 6 12
22( 3) 6 2 9 6
18 6 3
5 6 ( 3) 30 ( 3) 10
8( 3)6
246
4
263
363
12
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Evaluate if a = 3, b = -2, and c = -4.
1)
2)
3)
4)
5)
a b
3a c3 2
2a 3c
2a c
2b c
3 2
53 3 4
2(3) 3( 4)
13
2(3) 4
14
22 ( 4)
5
9 4
6 12 18
9 4
2 16
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Simplify using the distributive property.1)
2)
3)
4)
5)
6)
4(x 7)4 7
4x 28
y(y 3)y 3
2y 3y
x(2x 9)x 9
22x 9x
7(8 x)7 8 7 x
56 7x
x(a b c) x a x b x c
ax bx cx
4(3 m k) 4 3 4 m 4 k
12 4m 4k
4 x
y y
x 2x
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Use the distributive property to simplify.
1) 3(x + 7)
2) 2(a - 4)
3) -7(8 - m)
4) 3(4 - a)
5) (3 - k)5
6) x(a + m)
7) -4(3 - r)
8) 2(x - 8)
9) -(2m - 3)
10) (6 - 2y)3
3x + 21
2a - 8
-56 + 7m
12 - 3a
15 - 5k
ax + mx
-12 + 4r
2x - 16
-2m + 3
18 - 6y
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Subtracting a Quantity
1) -(x + 6)
2) -(2x - 8)
3) 10- (4m + 3)
4) 2(x - 5) - (x - 3)
5) -(3a + 1)
6) -(-3x + 2x -7)
7) -12 - (3y - 8)
8) 4(3k - 5) - (2k + 9)
-x - 6
-2x + 8
10 - 4m - 3
- 4m + 7
2x - 10 - x + 3 x - 7
-3a - 1
+3x - 2x + 7
-12 - 3y + 8
- 3y - 4
12k - 20 - 2k - 9 10k - 29
2
2