Math Expressions Worksheet With Answers - Grade 7 And 8 - University Of Waterloo - 2013 Page 12
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12Answers
III
IV
V
II
I
(a) 5
7
(a) x =
1
(a) x = 8
(a) 4
(a) 216
y = 1
(b) 3
3
2
2
(b) x = 5
(b) 25
(b) 98
(b) x =
5
(c) 3 2 2 3
(c) x = 5
(c) 32
(c) 378
y = 9
2
2
(d) x = 20
(d) 30
(d) 6764
(d) 7(2 + 9 + 5)
(e) x = 2y
9
(e) 10
(e) ad+ae+af +
(e) 6(1 + 9 + 2 +
bd+be+bf +
(f) x = 8
8 + 3 + 7 +
cd + ce + cf
4 + 6 + 5)
Problem Set
1. (a) 4
(b) 1
(c)
3
(d) 0
2. 22
3. 256
4. Answers may vary. See solutions.
5. 145
6. (a) 171
(b) 1855
(c) 628
(d) 736
(e) 2414
7. (a) x =
5
(b) x =
4
(c) x = 3
12
8. x =
47
9. 13 points
1
10.
2
11. (a) a + 2ab + b
(b) a
2ab + b
(c) b
a
(d) a
b
12. B
12
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