Everyday Math Grade 4 Lesson 5.2 Place Value in Decimals Copyright 2011 Kelly Mott

Everyday MathGrade 4 – Lesson 5.2

Place Value in Decimals

Copyright © 2011 Kelly Mott

Lesson Components:Part 1: Math Boxes 5.2 Page 117Part 2: ReviewPart 3: PowerPoint LessonPart 4: Math Journal Pages 115-116Part 5: Additional Sheets



Math Boxes Lesson 5.2Page 117


Math Box 1:


Math Box 2:


Math Box 3:


Math Box 4:


Math Box 5:

REVIEW


When multiplying with one zero, try this: 1. Circle the zero 2. Multiply the fact 3. Add the zero in Example:

Multiply with 1 Zero


2 x 30 = ___

• Let’s Practice a Few:



30 x 3 = 3 x 40 =

2 x 80 = 90 x 5 = 7 x 10 = 80 x 7 = 20 x 5 = 6 x 30 =

When multiplying with two zeros, try this:

1. Circle the zeros 2. Multiply the fact 3. Add the 2 zeros in Example:



20 x 30 = ___

• Let’s Practice a Few:

Multiply with 2 Zeros


40 x 30 = 20 x 90 =

300 x 2 = 40 x 50 = 90 x 10 = 200 x 7 = 600 x 5 = 8 x 500 =


Part 1: Place Value in Decimals

When we write numbers, the position or “place” of each number is important.

Place Value


5 in the tenths place 3 in the ones place 7 in the hundredths

place 2 in the tens place

____ ____ . ____ ____

Write the Number 1


8 in the tens place 2 in the hundredths

place 9 in the ones place 7 in the tenths place

____ ____ . ____ ____

2 in the tenths place 8 in the ones place 3 in the hundredths

place 1 in the tens place

____ ____ . ____ ____

Write the Number 2


3 in the tens place 1 in the hundredths

place 4 in the ones place 6 in the tenths place

____ ____ . ____ ____


Part 2: Value of a Number

What is the value of the 6 in the numerals below:

a. 27.60 __________________

b. 62.05 ___________________

Value of a Number 1



a. 0.361 __________________

b. 2.056 ___________________


a. 31.80 __________________

b. 87.15 ___________________

Value of a Number 2



a. 0.482 __________________

b. 5.018 ___________________


a. 98.40 __________________

b. 40.78 ___________________

Value of a Number 3



a. 0.042 __________________

b. 7.504 ___________________


Part 3: Ordering Decimals

• Line up the numbers. Then put them in order. Cross out the numbers as you go.

• Now put them in order from least to greatest:

_________ _________ _________ _________

ORDER: LEAST TO GREATEST 1

H Tens Ones Tenths Hundredths

.

.

.

.

.

Order these numbers:1.62 , 0.85, 1.09, 0.35


• Line up the numbers. Then put them in order. Cross out the numbers as you go.

• Now put them in order from least to greatest:

_________ _________ _________ _________

ORDER: LEAST TO GREATEST 2

H Tens Ones Tenths

Hundredth

s

Thousandths

.

.

.

.

.

Order these numbers:1.26 , 1.068, 1.091, 0.35



Part 4: Make the Smallest Number

Write the smallest number you can make with the following digits:

3 6 5 8 2

___ ___ . ___ ___ ___

Make the Smallest 1



3 6 5 8 2


9 2 1 7 3

___ ___ . ___ ___ ___


5 2 8 7 1

___ ___ . ___ ___ ___

Make the Smallest 2



3 6 5 8 2


6 3 2 5 9

___ ___ . ___ ___ ___


Part 5: Make the Biggest Number

Write the biggest number you can make with the following digits:

3 6 5 8 2

___ ___ . ___ ___ ___

Make the Biggest 1



3 6 5 8 2


9 2 1 7 3

___ ___ . ___ ___ ___


5 2 8 7 1

___ ___ . ___ ___ ___

Make the Biggest 2



3 6 5 8 2


6 3 2 5 9

___ ___ . ___ ___ ___


Part 5: Words to Numbers

3 and 27 hundredths

Write the Decimal


735 thousandths

1 and 207 thousandths

Write the Decimal


6 and 18 thousandths

3 and 2 thousandths

Write the Decimal


7 and 8 hundredths


Does this make sense?


MATH WORKJournal Pages 115-116


Documents

Everyday Math Grade 4 Lesson 5.2 Place Value in Decimals Copyright 2011 Kelly Mott