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Function tables and Unknowns

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Learn the basics of equations, variables, and unknowns in mathematics. Practice solving word problems and understand the importance of unknowns in everyday life.

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Function tables and Unknowns

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  1. Function tables and Unknowns October 30, 2013

  2. Vocabulary • Equation- a number sentence that contains an equal sign, showing that all parts are equal • Solve- to solve an equation means to find the value of the variable so the sentence is true. • Solution-the value of the variable that makes the sentence true. • Variable- a letter that holds the place of an unknown number

  3. Addition and Subtraction • X +3 =7 • d- 6 =8 • B-1=13 • C +13 =19

  4. Word problems • A box contained some snack bars. Sergio ate 4 snack bars. Now there are 8 snack bars left. How many snack bars were there at the beginning?

  5. Fabian bought 2 comic books. Now he has 11 books in all. How many comic books did Fabian have to start with?

  6. In one season, the Texas A&M womens volleyball team won 16 games. If they played a total of 30 games that season, how many games did they lose?

  7. JOURNAL ENTRY • Why do we need to know what unknowns are? How are they useful in every day life?

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