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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Real Numbers and Their Properties
Properties of the Real Numbers
Warm-Ups
1
24 ÷ (4 ÷ 2) = (24 ÷ 4) ÷ 2
A)
TRUE
B)
FALSE
2
1 ÷ 2 = 2 ÷ 1
A)
TRUE
B)
FALSE
3
6 - 5 = -5 + 6
A)
TRUE
B)
FALSE
4
9 - (4 - 3) = (9 - 4) - 3
A)
TRUE
B)
FALSE
5
Multiplication is a commutative operation.
A)
TRUE
B)
FALSE
6
5x + 5 = 5(x + 1) for any value of x.
A)
TRUE
B)
FALSE
7
The multiplicative inverse of 0.02 is 50.
A)
TRUE
B)
FALSE
8
-3(x - 2) = -3x + 6 for any value of x.
A)
TRUE
B)
FALSE
9
3x + 2x = (3 + 2)x for any value of x.
A)
TRUE
B)
FALSE
10
The additive inverse of 0 is 0.
A)
TRUE
B)
FALSE
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