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Substitution in Formula Achbar the Egyptian is in the market selling his camels. Cairo Market - Prices Camel=20 Deben Sphinx=7 Deben Pyramid=52 Deben What will the value of the following be: Deben Remember, you must multiply before adding

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Cairo Market - Prices Camel =20 Deben Sphinx =7 Deben Pyramid =52 Deben How many debens will Achbar have for: Deben

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A Different Market Luxor Market - Prices Camel =15 Deben Sphinx =10 Deben Pyramid =45 Deben The prices are different in the market at Luxor What will the value of the following be: Deben

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Are the pictures necessary? Luxor Market - Prices C=15 Deben S=10 Deben P=45 Deben What will the value of the following be: Deben We can write the problem easier without the pictures:

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Exercise What will the value of the following be: 1.. 2.. 3.. 4.. 5.. Alexandria Market C=15 S=10 P=45

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Subtracting in the Market Giza Market C=12 S=20 P=31 Remember that we can subtract as well as add What will the value of the following be:

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Exercise Calculate the value of: 1.. 2.. 3.. 4.. 5.. C=12 S=20 P=31

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Worksheet Answer the questions on the worksheet in your books. Remember to follow the same method as that given in the examples: Answers 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16.

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Worksheet There are more than one answer to some of the following questions: 17. 28. 29. 20. 21. A camel and10 deben is worth 22 deben, therefore:

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Addition Multiplication Subtraction Division. 1.If the signs are the same, add the numbers and keep the same sign. 5 + 2 = 7- 8 + - 5 = - 12 2.If the.

Addition Multiplication Subtraction Division. 1.If the signs are the same, add the numbers and keep the same sign. 5 + 2 = 7- 8 + - 5 = - 12 2.If the.

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