Basic Mathematics Practice Lab 0 You can use the problems below as a “self-test” on the material presented in this review. If you can handle these problems, you’re ready to do all of the arithmetic in this text. If you have difficulty with any of these problems, please review the Basic Mathematics Review 1.
Complete each of the following a.
17 x 3 = 51 b.
17(3) = 51 c.
(17)(3) = 51 d.
17/3 = 5.67 e.
(42)
2
= 1,764 f. ___ √
113 = 10.63 2.
For the set of scores (
X
i
) of 50, 55, 60, 65, and 70, evaluate each of the expressions below: Σ
X
i
= 50+55+60+65+70 = 300 Σ
X
2 = 2,500+3,025+3,600+4,225+4,900=18,250 (
Σ
X
i
)
2 = (300)(300)=90,000 3.
Complete each of the following: a.
17 + (-3) + (4) + (-2) = 16 b.
15 - 3 - (-5) + 2 = 19 c.
(-27)(54) = -1,458 d.
(113)(-2) = -226 e.
(-14)(-100) = 1,400 f.
-34/-2 = 17 g.
322/-11 = -29.27 h. ___ √
-2 = 1.41 i.
(-17)
2
= 289 4.
Round off each of the following to two places beyond the decimal point: a.
17.17532 = 17.17 b.
43.119 = 43.12 c.
1076.77337 = 1076.77 5.
Evaluate each of the following: a.
(3 + 7)/10 = 1 b.
3 + 7/10 = 3.7 c.
((4 - 3) + (7 + 2))/((4 + 5)(10)) = 0.11 d.
√
(7(5 - 3)
2
)/((17/3)(4)) = 1.11
