Tuesday, September 7, 2010

7th Grade 9/7/10 Helpful homework hint

Integer - a number and its opposite (1, -1, 2, -2, 3, -3...and so on)
Absolute value - the distance from a number to zero (ex. -19 = 19 (because -19 is 19 units from 0))
Opposite - a number the same distance from zero just on the opposite side (ex. 3 is the opposite of -3)
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Comparing numbers
Ex.
4 ___ -5 (using <, >, or =) the answer is >
-12 ___ -1 (using <, >, or =) the answer is <
-31 ___ 31 (using <, >, or =) the answer is =

Ordering Numbers using a number line
  1. Create your number line so that all numbers given will fit
  2. Plot a point for each value given in the data set
  3. Write the numbers from left to right (least to greatest) from the number line

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