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Symbols, Addition, Subtraction, Multiplication, and Division.

Symbols, Addition, Subtraction, Multiplication, and Division. Working through problems using Egyptian Symbols Lesson #2 PowerPoint Ms. Buschbacher. Let’s Review!. What is the ones place represented by? Tens? Hundreds? Thousands? Ten-Thousands? Hundred-Thousands? Millions?

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Symbols, Addition, Subtraction, Multiplication, and Division.

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  1. Symbols, Addition, Subtraction, Multiplication, and Division. Working through problems using Egyptian Symbols Lesson #2 PowerPoint Ms. Buschbacher

  2. Let’s Review! • What is the ones place represented by? • Tens? • Hundreds? • Thousands? • Ten-Thousands? • Hundred-Thousands? • Millions? • What is the significance of these items to the Egyptians and society? Why are they significant? What do you feel is the most significant?

  3. What place values do these symbols hold?

  4. What number is represented by:

  5. 4,514! We have: 4thousand 5hundreds 1 ten 4 ones 4000 +500 +10 +4 = 4514

  6. What number is represented by:

  7. 2,131,214! We have: 2 millions 1 hundred thousand 3 ten thousands 1 thousand 2 hundreds 1 ten 4 ones 2,000,000 + 100,000 +30,000 +1,000 + 200 +10 + 4 = 2,131,214

  8. Solve these problems: • The next problems will be adding, subtracting, multiplying, and dividing. • If it is easier, convert the symbols to numbers then back into symbols when you’re done with the problem. • Make sure you have your symbols matched up with the correct place value/position. • Add all of these problems to your notes • We will go over the answers on the board.

  9. Write from numbers to symbols • 341,234 + 1,230 • 45 + 12 • 345,534 + 612 • 560,203 + 7,028 • 2,369,492 + 349 • 4543 – 233 • 3, 454, 468 – 4,344 • 341,200 / 200 • 45 / 5 • 1200 * 600 • 85 * 1,283 • 2,369,492 / 2 • 1,234,545 * 7 • 12*344

  10. Write from symbols to numbers Added to? Multiplied? Subtracted? Divide?

  11. Challenge Problem A man borrows donkeys to use for transporting goods. To re-pay the loan the man must give the lender deben of copper every month per donkey. The man uses each donkey for days per month for transporting goods and earns deben of copper per donkey per day for this work. How many deben of copper does the man make per month?

  12. Ancient Scrolls • Scrolls were found from Ancient Egypt with the formula for • Surface area of a sphere • 4πr2 • Volume of a Pyramid • Area of the base * Height * 1/3 • Why were these useful? • What would civilizations have done before this? • What would civilizations have done if the Egyptians had not have found this? • What is the importance of these two formulas?

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