1. Basic Math Skills Workshop
Business Math
Basic Math Skills Workshop

2. Place Values
Whole #’s Decimals 

3. Rounding a Whole Number
Round to the nearest hundred
7,862
First, find the digit in the hundreds place
Next, read the digit to the right.
Remember: 5 or more, round up. Less than 5, round down
Since 6 is greater than 5, we round up
7,862
7,862
7,900

4. Rounding a Decimal Round 0.637 to the nearest tenth 0.637 0.6
One again, begin by locating the “tenth” place
0.637
Since 3 is less than 5, we round down!!!
0.6

5. Rounding to the Nearest CENT
Rounding to the nearest cent means rounding to the hundredth place.
Ex: Round $ to the nearest cent
=$1.33

6. Rounding Round 5,693.251 to…. Thousands Hundreds Tenths Ones  6,000
 5,700
 5,693.3
 5,693

7. Working with CA$H
Dollar and cents amounts are often rounded to the nearest cent, or hundredths place.
Example: $3.289 ≈ $3.29
TRY!
$21.277 $ $

8. Tenth of a Cent
Sometimes it’s necessary to round to the nearest tenth of a cent
Step 1: Convert from dollars to cents by multiplying by 100 (or moving your decimal two places to the right!)
Ex: $ x 100 = ¢
Round to nearest tenth of a cent
58.94 ¢ = 58.9 ¢

9. Tenth of a Cent Round the answers to the nearest tenth of a cent
$7÷16
$2.50÷18

10. Percent to Decimal
To convert percent to decimal, either divide by 100 or just move your decimal point two places to the left
37.5% 9%

11. Decimal to Percent
To convert percent to decimal, either multiply by 100 or just move the decimal two places to the right
Example: 0.42 = 42%
.005 = .5% or 0.5%

12. Conversions
Convert 09% into a decimal
Convert .025 into a percent

13. Calculating the Mean
The “mean” is a single number that is used to represent a group of numbers
The arithmetic mean is a way of calculated the “average” of a group of numbers
Suppose we have n numbers in a group. We would find the mean by dividing the sum of all of the numbers by n

14. Calculating the Mean
Example: find the mean of the following group of numbers: 10, 4, 7, 8, 6
Mean =
NOTE: We are dividing by 5 because there are five numbers in the group