So far in Chapter 3...

I just wanted to take a second and briefly review what we've learned so far in Chapter 3.

1. Rounding & estimating with decimals
    ---Remember your place-values when being asked to round to a specific number.
    ---The rule is "5 and above, give it a shove; 4 and below, let it go."
    ---Remember that, after we round a number, we drop the digits that came after the digit we've rounded

2. Measures of Central Tendency
     ---Mean, Median, Mode, & Range are all ways to measure/describe/analyze a set of data
     ---Mean: Average // Median: Middle # // Mode: # that appears most often // Range: Highest - lowest
     ---***Take a look at the previous post for some creative math notes!

3. Formulas
    ---To solve a formula, simply plug in what you know (the numbers you are given) and solve for what
         you don't know (the unknown variable).
 
3. Solving Equations with Decimals
     ---Solve these the same way we solve equations with whole numbers - perform the inverse operation
          to solve for the variable.
     ---Now that we've practiced adding/subtracting decimals and have demonstrated that we can complete
         these operations without our calculators, we can use our calculators for assignments which require
         adding and subtracting decimals.