m30 Chapter 1

m30 Chapter 1 - Chapter 1 NATURAL NUMBERS(counting numbers...

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1 Chapter 1 NATURAL NUMBERS (counting numbers) 1, 2, 3, 4, 5,… 1 2 3 4 5 6 7 8 9 10 WHOLE NUMBERS 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, … 0 1 2 3 4 5 6 7 8 9 10 123,456,789 Give the place value of the 3. a) 12,351 b) 143 c) 300,000,000,000 d) 123,456 e) 56,730,987 Expanded form 5,607,521 123 200 587 597,506
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2 In Words 52,543,201 48,512 589,123,546 209 2,009 101,002,003 Three hundred two Four thousand, three One hundred million, thirty-three thousand, five hundred eleven Thirty-two million, twenty thousand, five Two hundred thousand, four
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3 Count to 10 using ones: 0 Count to 100 using tens: 0 Count to 1000 using hundreds: 0 What are the possible values for the tens place? What are the possible values for the hundreds place? What number is in the middle of 10 and 20? What number is in the middle of 400 and 500? What number is in the middle of 7000 and 8000? What number is in the middle of 0 and 10? What number is in the middle of 0 and 1000? Is 555 closer to 500 or 600? Is 1335 closer to 1300 or 1400? Is 9,999 closer to 0 or 10,000? Would you say 9,999 is approximately 9,000 or 10,000? Would you say 5,900 is approximately 5,000 or 6,000? Would you say 990 is approximately 1,000 or 900? Would you say 943 is approximately 940 or 950?
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4 ROUNDING WHOLE NUMBERS 14,567 TENS HUNDREDS THOUSANDS TEN THOUSANDS 14,5 67 14, 56 7 1 4,5 67 14 ,567 STEPS FOR ROUNDING Round 726,025 to the nearest ten thousand. 726,025 1. Find the ten thousands place 726,025 2. Look at the digit to the right 726,025 This is the test digit. 3. a. If the test digit is 5 or more the 2 increases by one to 3. b. If the test digit is 4 or less the 2 stays the same. 4. Every digit to the right of 2 becomes 0. 730,000 is 726,025 rounded to the nearest ten thousand.
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This note was uploaded on 01/13/2012 for the course MATH 30 taught by Professor Ianmccance during the Spring '12 term at Harvard.

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m30 Chapter 1 - Chapter 1 NATURAL NUMBERS(counting numbers...

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