TENTHS GRADE 3

Hello, How are you doing? Today, we are going to start a new lesson on Decimals.

Decimal Decimal - A number that uses place – value and a decimal point to show tenths and hundredths. Example – 1.52 Decimal Point – A point separating the ones and the tenths places in a decimal. Example – 0.45

Fraction Fraction - A number that names part of a whole or group. Example – Fraction of the shaded part is 2/3

Tenths Fraction of the shaded portion = 4/10 = 0.4 Ones.Tenths 0.4

How many tenths are shaded in the given figure? Answer – 6/10 = 0.6

Equivalent Decimals Decimals that name the same number. Example – 5/10 = 50/ = 0.50 are equivalent decimals.

Forms of Decimal For the fraction, 7/10 various forms of decimal are – Standard Form – 0.7 Place Value – tenths Word Form – seven tenths

Benchmark Equivalencies All of the given models represents the same decimals. ½ = 0.5

What does the shaded portion represents? a)0.3 b)0.30 c)Both a and b d)None of these

What does both represents? a) 0.3 b) Answer- 3/10 or 3- tenths

During 10 days at the beach, Alex swam in the Ocean 8 days. What represents the number of days Alex go for swimming? a) 8/10 b) 8 tenths c) 0.8 d) All the above

Write the fraction and a decimal for the shaded part. Answer- 50/ , 0.5

Write the decimal form for each. a) 2 tenths b) 6/10 c) 80/100 Answer- a) 0.2 b) 0.6 c) 0.80

What is the difference in 0.90 and 0.9? Answer- No difference. Both are same

Maria sells hair pin for 50¢ each. What part of a dollar is 50¢. Also write answer in decimal? Answer- 50/100, 0.50

Important Tips In Decimals 0.6 and 0.60 are equal. They are equivalent decimals. In Fractions, 60/100 = 0.60 = 0.6 In Word Form, 0.5 can be written as 5 tenths.

ASSESSMENT

1.What coins would be used to show 5/10 of 1 dollar? Answer- 5 dimes

2.Write the shaded part in words. Answer – 8 tenths

3.Write each as decimal. a) Three tenths b) 60/100 c) 9/10 Answer- a) 0.3 b) 0.60 c) 0.9

4.Circle the equivalent fractions. Four- tenths Seven tenths

5.How many dimes make a dollar? Answer- 10

6.Elise spend 40¢ on a juice. How this amount can be written in fraction? Answer – 40/100

7.Shade 0.2 of the grid given below.

8.Daisy gave her friend 2/10 of a dollar. How much did he give her? Answer- 0.2 of a dollar

9.Write 0.1 in different ways. Answer- One-tenths 1/

10.Fill the missing numbers to complete the decimal- fraction equivalent. 3 dimes = 3/  =  tenths = 0.  = 0.3  Answer- 3 dimes = 3/10 = 3 tenths = 0. 3 = 0.3 0

Recap Decimal Fractions Tenths Equivalent Decimal Forms of Decimal Benchmark Equivalencies Solved Examples Practice Problems

Well Done! Now Practice Worksheets on the Lesson.