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BY: GRACE SILVERSTEIN This Week I Learned...

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About Decimal Place Values. Thousandths In the number, 12.017 there are 7 thousandths.0.007 Hundredths In the number, 239,234.7689 there are 6 hundredths.0.06 Tenths In the number, 1,342,365.1427 there is 1 tenth.0.1

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About Comparing Decimals. ComparisonSymbol 0.7 vs. 0.70= 1.90 vs. 1.09> 2.789 vs. 7.289< 100.00 vs. 99.999> 758,909.4 vs. 758,909.385> 12.12 vs. 12.120= 134,343,567.789 vs. 1.93> Symbol Key less than = equal to

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About Adding and Subtracting Decimals When Subtracting decimals, make sure that the numerals have the same amount of digits. For example, if I wanted to subtract 2.67 from 3.7 I would have to “add” a zer0 to the end of 3.7. Even though there are more numerals doesn’t mean that the value changed. 3.7 = 3.70 It’s just a way of saying there is none of the place value(s). When Adding decimals, you should also “add” zeros. Remember there is no special way to add and subtract decimals. (Use the traditional adding and subtracting method. 3.70 3.70 -2.67+2.67 1.03 6.37

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Words to know: Tenth-Being one of ten equal parts. Hundredth-Being one of 100 equal parts. Thousandth-Being one of 1,000 equal parts. Comparison-The act of comparing. Numeral-A word, letter, symbol, or figure, etc., expressing a number; number: the Roman numerals. Digit-A symbol representing a numeral. Add-To find the sum of (often followed by up ): Add this column of figures. Add up the grocery bills. Subtract-To take (one number or quantity) from another; deduct. Decimals-Pertaining to tenths or to the number 10. Currency-Something that is used as a medium of exchange; money.

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Writing, Comparing, and Rounding Decimals

Writing, Comparing, and Rounding Decimals

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