Math Expressions Worksheet With Answers - Grade 7 And 8 - University Of Waterloo - 2013 Page 11
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1211. Expand and simplify the expressions.
(a) (a + b)
(Note: (a + b) = (a + b)
(a + b))
(b) (a
b)
(c) (a + b)
(b
a)
(d) (a + b)
(a
b)
12. *Each of the five tins below contains either coffee, cocoa, or powdered milk. There is
twice as much coffee as cocoa by total weight. No three tins contain the same item.
Which tin is the only one containing cocoa?
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