Ratios December 4, 2013

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I know that ratios are kind of like the comparisons of an original shape and the original shape either enlarged or reduced. It is like saying  this amount of the original is like this amount of the enlarged or the reduced. A ratios sequence is kind of like x:y x= the original y= The enlarged or reduced.

Examples:

The Ratio of this picture would be 4:10 because the base of the original triangle is 4 and the base of the enlarged is 10, another ratio is 6:15 because you do the same thing as you did with the base but you do it up the side.

Absolute Value

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Learning Log

Absolute Value of a number is judging on how far away from zero it is, without focusing on the positive and negative signs. So it doesn’t matter if something goes left or right, it only matters how far away from zero it is.

For Example:

| 4 |= 4

| -4|= 4

|9-3+2|= |8|= 8

|-9-3+2|= |-10|= 10

The Giant One and Equivalent Fractions

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October 21, 2013

Today I learned about the giant one. I learned that in the giant one, the numerator and denominator are the same. You multiply the fraction by the giant one to find an equivalent fraction. Equivalent fractions are when the numerator and denominators are different, but they equal the same whole.

Examples,

4/9 * 5/5= 20/45

12/15* 2/2= 24/30

9/12* 3/3= 27/36

Distributive Property

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October 15, 2013

The Distributive Property states that the multiplier of a sum or difference can be

“distributed” to multiply each term. It helps because it breaks the problem down, so its

easier to solve, because when you have a big problem, you could make a mistake.

Example:

9(34)

9(30)= 270

9(4)= 36

9(34)= 270+36= 306

9(34)= 306