Adding Subtracting Order of Operations Decimal Numbers Rounding Numbers Point

Adding subtracting order of operations decimal

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Adding & Subtracting
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Order of Operations
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Decimal Numbers
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Rounding Numbers Point to the column which represents the place value you are rounding to (TARGET) Look at ONE column immediately to the right (NEIGHBOR) If NEIGHBOR is less than 5, leave TARGET alone If NEIGHBOR is 5 or more, increase TARGET by 1 Zero all numbers to the right of TARGET
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Decimal Arithmetic Addition & Subtraction o Line up the DECIMAL POINTS o Bring decimal point directly down below in the answer Multiplication o Line up RIGHT SIDE of numbers o Ignore decimal points until end o Move decimal point from the right side the same number of places as both original numbers have, combined Division o MUST divide by whole number!! o Move decimal point inside the same number of places as you move the outside point o Pop the decimal point up into the answer immediately
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Roman to Arabic M = 1000 D = 500 C = 100 L = 50 X = 10 V = 5 I = 1 Add values left to right If I, X, or C appears to the left of a larger value, subtract that value from the larger one MMCDLXXIII = 1000+1000+400+50+20+3 = 2,473 CXLVII = 100+40+7 = 147
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Arabic to Roman M = 1000 D = 500 C = 100
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  • Fall '13
  • Addition, Elementary arithmetic, decimal point, Dunwoody Learning and Tutoring Center, Test of Essential

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