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Equivalence
Positive, Negative or Zero
Simplifying Expressions
100
7 + (-2)
5
100
-2 (4)
-8
100
Which of the following is equivalent to : -9 - (-2) a. -9 - (2) b. 9 - (2) c. -9 + (+2) d. 9 + (+2)
c. -9 + (+2)
100
(-3)(-2)(9)
Positive
100
3(2- 1/3)
5
200
6 + 3
9
200
-3(-4)
12
200
Which of the following is equivalent to: 14 + (-2)? a. -14 - 2 b. -14 +2 c. 14 -2 d. 14 +2
c. 14-2
200
9(-2)(-3)(0)(7)(-8)
zero
200
1/2 (4+3/4)
2 3/8 or 19/8
300
-15 - (-2)
-13
300
2(12)
24
300
Which of the following is equivalent to: 3+ (-4)? a. 3 - 4 b. 3 + 4 c. -3-4 d. -3+4
a. 3-4
300
(-9)(1)
Negative
300
2(4 -2/3)
6 2/3 or 20/3
400
4 - (-6)
10
400
4(-9)
-36
400
Which of the following is equivalent to: 9 - (-2)? a. 9 -2 b. 9 +2 c. -9-2 d. -9+2
b. 9+2
400
(-12)(-7)(-18)(-3)(-17)(-2)
Positive
400
1/3(4 - 3/4) + 2/12
15/12 or 1 3/12 or 1 1/4
500
3 + (-4)
-1
500
(-7)(-7)
49
500
Which of the following is equivalent to: -15/-2? a. 15/-2 b. -15/2 c. -15/+2 d. 15/2
d. 15/2
500
(-3)(5)(-17)(-18)(6)(-4)(13)(-2)
Negative
500
23/12 - .25
20/12 or 1 8/12 or 1 2/3