Decimals Part I. Writing Word Names for Decimals. Steps: 1. Read the whole number. 2. Read the decimal point as and

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1 Decimals Part I Decimal is a real number expressed in base 10. It is composed of digits and one decimal point. Each digit in relation to the decimal point has a particular value. Since decimal is a base 10 number, each place has a value that is either ten times larger than the one on its right, or ten times smaller than the one on its left. Writing Word Names for Decimals Steps: 1. Read the whole number 2. Read the decimal point as and 3. Read the decimal fraction (where it is placed on the base 10 line) Example 1: The number 7.9 is read as seven and nine tenths Example 2: The number.02 is read as two hundredths Example 3: The number is read as fifteen and eight hundredths Example 4: The number 0.8 is read as eight tenths Example 5: The number is read as forty-nine and fifty-six thousandths

2 Converting Word Names to Decimal Numbers Convert the following word names to decimal numbers: 1) Four and two thousandths 2) Seventy-three and nine hundredths 3) Five Hundred thirty-five and five hundred thirty-five thousandths 4) Ninety-one thousand four and forty-nine thousandths 5) Six Hundred six thousand sixty-six and six hundred sixty-six thousandths 6) Eight Million eighty-eight thousand eight hundred eight and eighty-eight hundredths 7) Nine Hundred ninety-four million one hundred ninety-four thousand nine hundred one and forty-nine thousandths 8) Eight Hundred eight million eighty thousand eight hundred eight and eighty-eight thousandths 9) Three Hundred thirty-nine million three hundred nine thousand nine hundred three and ninety-three thousandths 10) Seven Hundred seventy million seven hundred seven thousand seven hundred seven and seven hundred seven thousandths

3 Converting Decimal Numbers to Word Names Convert the following decimal numbers to word names: 1) ) ) ) ) ) ) ) ) ) ) )

4 Addition You may be asked to solve addition problems in a variety of ways. Look at the following problems: 1) =? 2) =? 3) What is the sum of nine hundred million nine thousand fourteen and fourteen thousand nine hundred fourteen? 4) Lugz shoes says that they sold twenty-two million five hundred seven thousand three pairs of shoes last year. This year they sold thirty-nine million forty-one thousand and seventeen pairs of shoes. How many shoes did they sell for the two years combined? 5) Nike sales grossed over $874,078,157 dollars last year. This year they will gross $125,921,842. How much has Nike made in the last two years? 6) Tangie bought a Prada purse for $ Linda bought a Gucci purse for $ Paula bought a Louis Vuitton for $ Pamela bought a Coach purse for $ If Linda uses her $52 off coupon and Paula uses her $99.99 off coupon, how much did all of the women pay in total? 7) What is the sum of the following numbers combined? Ninety-eight thousand eight and ninety-eight hundredths Eighty-nine thousand nine and eighty-nine thousandths Ninety thousand eight hundred nine and eight thousandths Eight hundred nine thousand eight and ninety-eight hundredths 8) =? 9) What is the sum of and ? 10) =?

5 Subtraction You may be asked to solve subtraction problems in a variety of ways. Look at the following problems: 1) =? 2) =? 3) Find the result of forty-nine thousand two less two thousand twenty-two 4) Subtract ninety-seven thousand ninety-seven from eight hundred thousand eight hundred ninety-seven 5) 29,076, ,999, =? 6) =? 7) Jim had $59.74 in his pocket when he went to Cedar Pointe. On a ride he lost $ How much did he have left in his pocket? 8) ABC Company made $524,005,024 last year. This year they only made $336,912,381. How much did they lose this year? 9) A Scientist calculates that the size of an object is inches less than its actual size of inches. What is the size of the object? 10) TLC Company made $54,209, last year. This year they lost $72,912, How much money did they make? 11) Marsha went to New York with $2, She ended up buying a Coach purse for $235.56, a Gucci purse for $315.72, and a Louis Vuitton for $ How much money did she bring back home? 12) Landers made $97,498,823 this year. But, its Buckingham store lost $32,456,901, the Lords Inn store lost 42,903,993, and its Brentwood store lost $22,137,930. How much did Landers Inc. make or lose for the year?

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