I juggled Granny’s china teacups…..once! © Mike’s Math Mall

It’s time we find another example!

Let’s change 0.62 to a percent! × = 62 Don’t forget the percent sign! 62%

Someone told me that when you multiply by 100, it’s just like moving the decimal point 2 places to the right! That someone was correct! Moving the decimal seems waaaaay easier to me! It is! Just don’t forget to add the percent sign after you move the decimal!

0.45 = 45% → Before we can move the decimal 2 places to the right, we have to add a zero. Example 1 : Example 2 : 0 → 70.0 = 70%

00 Example 3 : 1.25 → = 125% Example 4 : 2 Add two zeros so we can move the decimal! → = 200% I’m pretty sure I have this! We better practice just to be sure!

Change the following decimals into percentages.

Me thinks me gettin’ dizzy! This won’t be bad. Trust me!

If we move the decimal 2 places to the right to change a decimal to a percent, what do you suppose we do to change a percent back to a decimal? Move the decimal 2 places to the left?

% % Example 1 : 85 Locate the “understood” decimal after the 5 and remove the percent sign. % →.85 = 0.85 Example 2 : 30 →.30 = 0.3 Example 3 : 115 = 1.15 Your turn!

Change the following percents into decimals.

First, change the fraction into a decimal. (Divide the numerator by the denominator) Now, change the decimal into a percent. (Multiply by 100, or move the decimal 2 places to the right and add a % sign) 0.25 = 25%

First, change the percent into a decimal. (Divide by 100 or move the decimal 2 places to the left) Now, change the decimal into a fraction % 25%