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

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Everyday Math Grade 4 – Lesson 5.2 Place Value in Decimals Copyright © 2011 Kelly Mo

Transcript of 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

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Math Boxes Lesson 5.2Page 117

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Math Box 1:

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Math Box 2:

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Math Box 3:

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Math Box 4:

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Math Box 5:

REVIEW

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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

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2 x 30 = ___

• Let’s Practice a Few:

Multiply with 1 Zero

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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:

Multiply with 1 Zero

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20 x 30 = ___

• Let’s Practice a Few:

Multiply with 2 Zeros

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40 x 30 = 20 x 90 =

300 x 2 = 40 x 50 =

90 x 10 = 200 x 7 =

600 x 5 = 8 x 500 =

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Part 1: Place Value in Decimals

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

Place Value

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

place 2 in the tens place

____ ____ . ____ ____

Write the Number 1

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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

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3 in the tens place 1 in the hundredths

place 4 in the ones place 6 in the tenths place

____ ____ . ____ ____

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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

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

a. 0.361 __________________

b. 2.056 ___________________

What is the value of the 8 in the numerals below:

a. 31.80 __________________

b. 87.15 ___________________

Value of a Number 2

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What is the value of the 8 in the numerals below:

a. 0.482 __________________

b. 5.018 ___________________

What is the value of the 4 in the numerals below:

a. 98.40 __________________

b. 40.78 ___________________

Value of a Number 3

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What is the value of the 4 in the numerals below:

a. 0.042 __________________

b. 7.504 ___________________

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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

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• 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

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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

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

3 6 5 8 2

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

9 2 1 7 3

___ ___ . ___ ___ ___

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

5 2 8 7 1

___ ___ . ___ ___ ___

Make the Smallest 2

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

3 6 5 8 2

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

6 3 2 5 9

___ ___ . ___ ___ ___

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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

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

3 6 5 8 2

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

9 2 1 7 3

___ ___ . ___ ___ ___

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

5 2 8 7 1

___ ___ . ___ ___ ___

Make the Biggest 2

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

3 6 5 8 2

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

6 3 2 5 9

___ ___ . ___ ___ ___

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Part 5: Words to Numbers

3 and 27 hundredths

Write the Decimal

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735 thousandths

1 and 207 thousandths

Write the Decimal

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6 and 18 thousandths

3 and 2 thousandths

Write the Decimal

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7 and 8 hundredths

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Does this make sense?

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HOMEWORKPage 116

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