Decimal Presentation

Goals For TodayGoals For Today

You will learn what decimals are.You will learn that decimals have place

values just like whole number.Will convert fractions and word problems

into decimals.

Intro To DecimalsIntro To Decimals

What are decimals?◦The decimal numeral system (also called base

ten) has ten as its base.When do we use decimals?

◦Weight◦Grades◦Most importantly…money

Decimal Place ValuesDecimal Place Values

Decimals follow the base ten rule.

Decimal Places ContinuedDecimal Places Continued

Class WorkClass Work

Identify Places Values

Identify Tenths Place◦1.58◦3.96◦1.87

Identify Hundreths Place◦8.764◦3.257◦5.29◦1.9

Identify Thousandths◦0.718239◦1.5782

ClassworkClassworkConvert These Fractions To Decimals1. 7/10 = 2. 5/10 =3. 89/1004. ¼ = 5. 2/3 = 6. 5/6 =

ClassworkClasswork

Convert These Word Problems To Decimals1.Three tenths2.Nine tenths3.Four hundredths4.Seventy Eight hundredths5.Four thousandths6.Five hundred one ten-thousandths7.Ninety-seven thousandths

Decimal WarsDecimal Wars

Play Decimal Warshttp://www.lauracandler.com/filecabinet/

math/PDF/decwar.pdf ◦Bout 1 - Scott Vs. Rebecca◦Bout 2 – Shalin Vs. Connor◦Bout 3 – Kai Vs. Christian◦Bout 4 – Winner of Bout 1 Vs. Bout 2◦Bout 5 – Winner of Bout 4 Vs. Bout 3◦Bout 6 – Loser of Bout 1 Vs. Bout 3◦Bout 7 – Loser of Bout 2 Vs. Bout 3◦Bout 8 – Loser of Bout 1 Vs. Bout 2

Introduction To DecimalsIntroduction To Decimals

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