Dividing Decimals.

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Presentation transcript:

Dividing Decimals

Today’s Objective IWBAT divide decimals.

Warmup - Divide 1) 29; 2) 8.333…; 3) 2.666…; 4) 14.5

Why is dividing decimals important? From Steele Creek Elementary to the city of Northfield, Minnesota, it is exactly 1801.44 miles. If Ms. Ryan can get 26.7 miles per gallon in her car, how many gallons of gas will it take her to arrive in her beloved state?

Presenting Ms. RYAN’S ride…

Why is dividing decimals important? From Steele Creek Elementary to the city of Northfield, Minnesota, it is exactly 1801.44 miles. If Ms. Ryan can get 26.7 miles per gallon in her car, how many gallons of gas will it take her to arrive in her beloved state?

What's happening to the decimal in these 2 problems?? 1.73 8.25 2.25 0.556 173 825 225 055.6

Key Points!!! Before dividing with decimals, we must make sure that there is… NO DECIMAL In the outside number If there is a decimal on the outside, we must move it ALL THE WAY to the right!!!

So what’s this look like? 0.06 3.72 372 6

So what’s this look like? 0.05 0.635 63.5 5

So what’s this look like? 1.73 0.825 173 82.5

So what’s this look like? 0.204 2.5 204 2500

Show me your fingers first and then we will move the decimal.

What will it look like after you move the decimal? 0.003 25

What will it look like after you move the decimal? 3.5 2.25

What will it look like after you move the decimal? 4.556 0.03

What will it look like after you move the decimal? 0.1 33

What will it look like after you move the decimal? 5.04 5.446

What will it look like after you move the decimal? 6.02 2.554

Now that we can move the decimals … LET’S DIVIDE!!!

Steps for Dividing Decimals 1.) Move the decimal all the way to the right on the outside. 2.) Move the decimal the same number of spaces to the right on the inside. 3.) Bring the decimal straight up. 4.) Divide as normal.

So what’s the actual answer? 0.003 36

So what’s the actual answer? 0.04 24.5

So what’s the actual answer? 0.3 0.0018

So what’s the actual answer? 0.6 0.024

Solve each problem 51 33 0.003 0.4 0.46 52.4 0.002 0.0005 1.8 0.0018 0.9 0.9