Negative Numbers 
Negative numbers will crop up all the time in your maths exam. They will not normally be stand alone questions but instead form part of another topic. You must study the rules for +  x ÷ carefully when working with negative numbers. 
Calculate: a) 6 + ^{}14 b) 4 ^{}6 c) ^{}6 x 5 d) ^{}40 ÷ ^{}8 
a) When adding a negative number to another number the sum becomes a subtraction. So: 6 + ^{}14 = 6  14 = ^{}8 b) When subtracting a negative number from another number the sum becomes an addition. So: 4 ^{}6 = 4 + 6 = 2 c) When multiplying negatives just do the sum as you normally would then make your answer negative. However, if both numbers are negative then your answer becomes positive. So: ^{}6 x 5 = ^{}30 d) When dividing negatives the rule is the same as when multiplying negatives. Remember, if both numbers are negative then your answer becomes positive. In this case both numbers are negative. So: ^{}40 ÷ ^{}8 = 5 
Calculate 6 x 4  
Write down the value of 16 divided by 2.  
Work out (3)^{2} + ^{}5  
In
London the temperature was 2^{o}C. The
temperature in Moscow was 11^{o}C lower. What was the temperature in Moscow? 

Given a = 2 and b = ^{}3, find the value of b^{2}  ab.  
Find the value of x^{2}  2x + 4 when x = ^{}1. 
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