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.

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Presentation transcript:

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

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

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

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:

Exercise What will the value of the following be: Alexandria Market C=15 S=10 P=45

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:

Exercise Calculate the value of: C=12 S=20 P=31

Worksheet Answer the questions on the worksheet in your books. Remember to follow the same method as that given in the examples: Answers

Worksheet There are more than one answer to some of the following questions: A camel and10 deben is worth 22 deben, therefore: