Presentation on theme: "Function tables and Unknowns October 30, 2013. Vocabulary Equation- a number sentence that contains an equal sign, showing that all parts are equal Solve-"— Presentation transcript:
Function tables and Unknowns October 30, 2013
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
Addition and Subtraction X +3 =7 d- 6 =8 B-1=13 C +13 =19
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?
Fabian bought 2 comic books. Now he has 11 books in all. How many comic books did Fabian have to start with?
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?
JOURNAL ENTRY Why do we need to know what unknowns are? How are they useful in every day life?