Date post: | 29-Dec-2015 |
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Write 0.324 in expanded notation.
In this lesson you will learn to write decimals in expanded
notation by dividing each digit by a unit fraction.
Let’s ReviewLet’s Review
320 210
2 x 100 = 200
2 x 10 = 20
Let’s ReviewCore Lesson
Decimal Place Values
tenthshundredths
thousandths
ones
1 1 11
10 100 1000
Let’s ReviewCore Lesson
Decimal Place Values
tenthshundredths
thousandths
ones
1 1 11
10 100 1000
0 814
Let’s ReviewCore Lesson
(4 x ) 1
10( 1 x )
1
100(8 x )
1
1000+ +
tenthshundredths
thousandths
ones
0 814
0.418 =
Let’s ReviewCore Lesson
(0.400) (0.010) (0.008) + +0.418 =
Let’s ReviewCore Lesson
(3 x ) 1
10( 2 x ) 1
100(4 x )
1
1000+ +
0 423
0.324 =
tenthshundredths
thousandths
ones
Let’s ReviewCore Lesson
(0.300) (0.020) (0.004) + +0.324 =
In this lesson you have learned to write decimals in expanded notation by multiplying each
digit by a unit fraction.
Let’s ReviewGuided Practice
Write 0.763 in expanded notation.
tenthshundredths
thousandths
ones
0 367
(7 x ) 1
10( 6 x ) 1
100(3 x )
1
1000+ +0.763 =
Let’s ReviewGuided Practice
(0.700) (0.060) (0.003) + +0.763 =
Let’s ReviewExtension Activities
What’s My Number?
Step 1: Get a partner. Get 10 index cards and write the numbers 0 -9 on the cards. Place the cards face down.
Step 4: The person with the largest number wins. Start over by picking 3 new cards.
Step 2: Taking turns pick up three cards. Create the largest decimal number you can.
Step 3: Write the number in expanded notation.
Let’s ReviewExtension Activities
Building Numbers
Step 1: Get a partner, a decimal mat, and a spinner with numbers 0 -9 on it.
Step 4: Record which of these numbers is greatest and which is least.
Step 2: Taking turns spin the spinner three times and record each spin.
Step 3: Record a three-digit decimal number,then rearrange the digits to see how many three digit numbers you can make.
Let’s ReviewQuick Quiz
Write 0.546 in expanded notation.
Write 0.897 in expanded notation.