8.3 Scientific Notation. Scientific Notation 8-3 Scientific Notation.
Write 0.324 in expanded notation.. In this lesson you will learn to write decimals in expanded...
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Transcript of Write 0.324 in expanded notation.. In this lesson you will learn to write decimals in expanded...
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.