GMAS Review 6th grade

• Multiply 5 times x

• Multiply 5 times 6

• We multiply the outside number by all terms on the inside of the parentheses.

Substitute the value into the inequality and simplify. If the result is a true inequality, it is a solution. If the result is not true, it is not a solution.

Notice she simplified THEN changed it back to a mixed number!

Some text here about the topic of discussion

​You can use a table or chart for proportion problems. It is helpful to highlight the different types of numbers with different colors. As, you can see on the right, there are many different correct ways to set up a table or chart. This is just four correct ways of setting it up.

​Here are the same 4 examples written as proportions instead of in a table.

​First...

​The same types of numbers should be together. In our examples all of the numbers for miles are green and all of the numbers for hours are orange. You can see that the green numbers are always beside each other or above/below each other. The orange numbers are always together too

​You need to make sure that the numbers that are in the same sentence are together. In our example it says Harry walked 20 miles in 5 hours. So, 20 and 5 should be beside each other or above/below each other.

• Rectangles: L x W

• Parallelograms: B x H

• Remember, squares have all sides the same length!

• Mean is the average, so add up all the numbers then divide

• Mean is typically the best measure of center **unless there is an outlier**

• EX: {2, 3, 8, 9, 9} = 2 + 3 + 8 + 9 + 9 = 31 ÷  5 = 6.2

When There's An Outlier

• If there is NO outlier, the best measure of center to use is the mean

• EX: 12, 11, 8, 6, 11, 7, 10 = mean

• If there is an outlier, the best measure of center to use is the median

• EX: 12, 11, 8, 6, 11, 30, 10 = median

1. You must divide the numerator by the denominator

2. Do this until you find the remainder *

3. You will not go into decimals

*The remainder is a number that is smaller than the number you are dividing by.

• Volume is the amount of space a 3D object occupies

• Area is measured in unit squares (square units), volume is measured in unit cubes (cubic units)

• Figures are packed with unit cubes even if they aren't all visible

• Volume can be found by finding the area of the base (B) and multiplying it by the height (h) of the object

• V = Bh (B = bh) or Length x Width x Height (l x w x h)

B  100

• P =Part (the smaller petit number the one that is "part" of the bigger number)

  B = base or total (the big number)

  R = percent (the number with %)

  150    100   

30 is what percent of 150?

The percent goes over 100,

The 30 is the part of the number,

The big number is 150

• Step 1: Fill in the table with values and variables from the problem.

• Step 2: Cross Multiply

• Step 3: Divided to get the variable by itself

• [Remember what you do to one side of an equation you MUST do to the other]

Chelsea and her friends ate 75% of the apples.

There are 200 plates at Marios.