Section 1.1
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Sum –
Sets
Difference –
Elements, Members
Product –
Equal
Quotient –
Null
Example 1 – Simplify
Example 2 – Simplify
8 + 7 − 4 + 12 − 7 + 14
7 ( 9 + 5)
Example 3 – Simplify
Example 4 – Simplify
( 7 + 8) ÷ ( 4 − 1)
( 4 + 2 )( 7 − 1) +
9
4
7−3
Example 5 – Simplify
Example 6 – Simplify
7⋅9 + 5
8 + 4 ⋅ 3 − 14 ÷ 2
Example 7 – Simplify
Example 8 – Simplify
8 ⋅ 5 ÷ 4 + 7 ⋅ 3 − 32 ÷ 8 + 9 ÷ 3 ⋅ 2
5 + 6 ⎡⎣ 2 ( 3 + 9 ) ⎤⎦
Example 9 - Find the value of
3 x + 2 y , when x is replaced by 5
and y by 17
Example 10 - Find the value of
12a − 3b when a = 5 and b = 9
Example 11 - Evaluate 4 xy + 2 xz − 3 yz when x = 8, y = 6, z = 2
Example 12 - Evaluate
5c + d
for c = 12, d = 4
3c − d
Example 13 - Evaluate ( 2 x + 5 y )( 3 x − 2 y ) when x = 6, y = 3