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Published byGrace Curtis Modified over 5 years ago

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Divide with decimals Standard UW.GAP.5.M.NBT.07 Add, subtract, multiply, and divide decimals to hundredths using concrete models or drawing and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.

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**Essential Questions 1. What is addition? How do you add decimals?**

2. What is subtraction? How do you subtract decimals? 3. What is multiplication? How do you use a model and partial products to represent multiplying decimals? 4. What is division? How do you use a model and partial products to represent dividing decimals?

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**Set.... Think about the strategies we use to divide whole numbers....**

Take turns with your face partner and describe how we multiply and divide whole numbers.

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Objective I can divide decimals to hundredths place.

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**Decimal - a number with a fraction of tenths, hundredths, etc**

Decimal - a number with a fraction of tenths, hundredths, etc. written after a decimal point. Decimal point - the (.) between a whole number and fractions of tenths, hundredths, thousandths, etc. Digit- any of the numerals 0-9, which may be part of a larger number. x = Let’s Review Again

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**Rules for Dividing Decimals**

To divide decimals, divide as you would with a normal whole number then you move over the decimal.

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**Estimate, Multiply, Subtract, Bring Down, Start again/Stop**

Dividing Decimals Example 2 Solve = 2.25 ÷ 2.5 2.5)2.25 Estimate, Multiply, Subtract, Bring Down, Start again/Stop Divisor Dividend

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**Divide as with whole numbers.**

Dividing Decimals Example 2 Solve = 2.25 ÷ 2.5 2.5)2.25 -0 225 Divide as with whole numbers.

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**Dividing Decimals Divide as with whole numbers. Example 2**

Move decimal from 2.5 (divisor) over 1 to “get rid of it” Move the decimal over that same amount of spaces in the dividend. Then move decimal straight up. Example 2 Solve = 2.25 ÷ 2.5 0.9 25)22.5 -0 225 -225 Answer: 0.9

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**Now let’s try one together**

.46 ÷ 1.2

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Now you do one 15.2 ÷ 4.1

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**Lesson on Dividing Decimals**

decimals-using-knowledge-of-multiplication

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You and a partner try... Using what you learned in the lesson, using pictures, models, and properties of operations solve this problem with your partner... 26.4 ÷ .03

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Closure Think about what is different about dividing whole numbers and dividing decimals Write a $2 summary explaining what is different Repeat todays objective

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**Let’s watch a fun video about dividing decimals**

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**Independent Practice!!! (yay)**

1) ÷ .03 = 2) ÷ 05 = 3) ÷ .6 = 4) ÷ 1.2 = 5) ÷ .9 = 6) ÷ 1.0 = 7) ÷ .08 = 8) ÷ .4 =

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