U1_Overview_NumberSense.doc

# U1_Overview_NumberSense.doc - Day 1: BEDMAS Day 2: INTEGERS...

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Day 3: +/- FRACTIONS Fractions represent the parts of a whole. For example: means there are 3 out of a total of 4 parts. To add or subtract a fraction , write both fractions as fractions with the same denominator (bottom #), then keep the denominator and add or subtract the numerators (top #). Ex: M A T H O Day 1: BEDMAS When there are multiple mathematical operations in a math problem, the operations must be completed in a specific order, according to BEDMAS (Brackets, Exponents, (Division,Multiplication)*, (Addition, Subtraction)* * Whichever comes first within each bracket. Ex: 4 + 3 x 5 – 2 3 + 1 = 4 + 3 x 5 – 9 + 1 = 4 + 15 – 9 + 1 = 19 – 9 + 1 = 10 + 1 = 11 Day 2: INTEGERS Integers include zero, and all positive and negative non-decimal numbers. (Ex: -4, 0, 8, 132, -68) To add a negative number : To subtract a negative number : subtract it. Ex: 13 + (-6) add it. Ex: 13 – (-6) = 13 – 6 = 13 + 6 = 7 = 19 When multiplying or dividing a positive # and a negative # , the result is always negative. Ex: 5 x (-4) = -20 Ex2: 32 (- 4) = -8 When multiplying or dividing two negative #’s

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## This note was uploaded on 10/09/2011 for the course STAT QUA2220 taught by Professor Dr.emirjunver during the Spring '11 term at Algonquin College.

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U1_Overview_NumberSense.doc - Day 1: BEDMAS Day 2: INTEGERS...

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