Place Value.

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Presentation transcript:

Place Value

Place – the position of a digit in a number Place – the position of a digit in a number. Example: hundreds, tens, ones Ten Thousands 4,867,231.465 Hundreds Hundredths Hundred Thousands Millions Thousands Tens Ones Tenths Thousandths

Value – the value of a digit according to its place in a number Value – the value of a digit according to its place in a number. Example : 400, 60, 6 60,000 4,867,231.465 0.06 200 4,000,000 800,000 7,000 30 1 0.4 0.005

Period – Each group of three digits in a large number. Millions Thousands Ones Decimals 4,867,231.465

Standard Form – A way to write numbers by using the digits 0-9, with each digit having a place value. 4,867,231.465

Word Form – A way to write numbers using words. Four million, eight hundred sixty-seven thousand, two hundred thirty-one, and four hundred sixty-five thousandths

Expanded Form – A way to write numbers by showing the value of each digit. 4,000,000 + 800,000 + 60,000 + 7,000 + 200 + 30 + 1 + 0.4 + 0.06 + 0.005 OR 4 x 1,000,000 + 8 x 10,000 + 6 x 10,000 + 7 x 1,000 + 2 x 100 + 3 x 20 + 1 x 1 + 4 x 0.1 + 6 x 0.01 + 5 x 0.001

How do we write the following numbers in standard form? Schimmel Three million, seven hundred forty-two thousand, nine hundred fifty-eight 2. Twenty-five thousand, one hundred seven and fifty-six hundredths. 3. Six hundred thirty-one and four hundred nine thousandths

How do we write the following numbers in expanded form? 4,123.15 807.549 1,573.498 9,714.53

How do we write the following numbers in as a decimal and a fraction? Three and twelve hundredths

Seven hundred sixty-three and eighty-three thousandths

Nineteen and six tenths

How do we write the following numbers in word form? 85.426

3,701.19

7,526.096