g4c12

=Grade 4 Math, Chapter 12=


 * Vocabulary**

Inequality: A number sentence that uses the greater than sign(>) or the less than sign (<) to show that two expressions do not have the same value.

Solution: The value of a variable that makes an equation true.

Equation: A number sentence that uses the equal sign (=) to show that two expressions have the same value.

Ordered pair: A pair of numbers that names a point on a coordinate grid.

Probability: A number telling the likelihood an event will happen.

Likely (event): An event that probably will happen.

Unlikely (event): An event that probably will not happen.

Impossible (event): An event that cannot occur.

certain (event): An event that is sure to occur.

Equally likely (event): Just as likely to happen as not to happen.

Fair game: A game in which each player is equally likely to win.

Unfair game: A game in which each player doesn’t have the same chance of winning.

Outcome: A possible result of a game or experiment.

Tree diagram: A display to show all possible outcomes.

Prediction: An informal guess about what will happen.