To add -4 and 5, draw the starting number on a number line and count to the right when adding numbers. What is the difference in temperature between a desert at 40 °C and a mountain top at -2 °C? \(40 ...
The use of positive and negative addition and subtraction, are strictly connotative rather than denotative, please. It is often remarked, 'politics is about numbers and about people', it may as well ...
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