by switching around the two numbers next to the equal sign: (e) 81. Rewrite
(f) 20. Rewrite
5 58. First, do the multiplication inside the parentheses:
Now add:
6 123. First, do the subtraction inside the parentheses:
Now simply divide
7
(a)
(d)
Yes, the placement of parentheses changes the result.
8
(a)
(b)
No, because of the associative property of addition, the placement of parentheses doesn’t change the result.
9
(a)
(b)
No, because of the associative property of multiplication, the placement of parentheses doesn’t change the result.
10 937,690. The problem is easiest to solve by placing parentheses around
11
12
13
14
15
(a)
(b)
(c)
(d)
16
(a)
(b)
(c)
(d)
17
18
19
(a)
(b)
(c)
(d)
20
(a) 10,000. Write 1 followed by four 0s.
(b) 10,000,000,000. Write 1 followed by ten 0s.
(c) 1,000,000,000,000,000. Write 1 followed by fifteen 0s.
(d) 10. Any number raised to the power of 1 is that number.
In the next section, the chapter quiz gives you a chance to practice the skills you learned in this chapter.
Whaddya
