Set 4 (Answers begin on page 157)
The basic exponent rules in the context of signed
arithemetic are reviewed in this set.
49.–5^3 =
a.–
b. 15
c. 125
d.–
50.(–11)^2 =
a. 121
b.–
c.–
d. 22
51.What is the value of the expression 5(4 ̊)?
a. 0
b. 1
c. 5
d. 20
52.(2^2 )–3 =
a. 614
b.– 312
c.–
d. 2 –
53.(1–– 8 3)
2
=
a. 1
b.–
c.–^12
d.^12
54.–5(–1 –5–2) =
a.–
b.^256
c.^254
d.–^254
55.––^32
- ^23
2
=
a.–^53
b.–^89
c. 0
d.–^148
56.––^12
- =
a.– 514
b.–
c.^78
d.–^98
57.–^25
0
(–3^2 + 2–3)–1=
a. 0
b.–
c.–^791
d. 781
4 –21 – 2(–1)–3
=
a. 32
b.– 1144
c. 12 –
d. 218
2
–^13
2
9 –
- PRE-ALGEBRA FUNDAMENTALS–