Quiz 31, 15.1 - 15.3 Flashcards
1
Q
-3(-6) =
A
negatives cancel, so 3 x 6 =
18
2
Q
-8 - (-10) =
A
same as -8 + 10 =
10 - 8 =
2
3
Q
-7(8) =
A
one negative so the answer is negative
-56
4
Q
3(22) =
A
3 x 4 =
12
5
Q
4 + 23 =
A
4 + 8 =
12
6
Q
52 - 32 =
A
25 - 9 =
16
7
Q
4 + 32(7 - 5) =
A
4 + 9(2) =
4 + 18 =
22
8
Q
pir2 if r = 2
A
- 14 x 22
- 14 x 4
- 56
9
Q
lwh if l = 9; w = 7; h = 4
A
9 x 7 x 4
252
10
Q
y2 + 2x if y = 4 and x = 3
A
42 + 2(3)
16 + 6
22
11
Q
Use the distributive principle to simplify:
2(3 + x)
A
6 + 2x
12
Q
Use the distributive principle to simplify:
5(a - b)
A
5a - 5b
13
Q
Use the distributive principle to simplify:
4(m + 7)
A
4m + 28
