Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.
Use variables to represent numbers and write expressions when solving a real-world or mathematical problem; understand that a variable can represent an unknown number, or, depending on the purpose at hand, any number in a specified set.
Solve real-world and mathematical problems by writing and solving equations of the form x + p = q and px = q for cases in which p, q and x are all nonnegative rational numbers.
Write an inequality of the form x > c or x < c to represent a constraint or condition in a real-world or mathematical problem. Recognize that inequalities of the form x > c or x < c have infinitely many solutions; represent solutions of such inequalities on number line diagrams.
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Make 24 Use 4 cards and arithmetic signs to make a formula that equals 24. |
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Swimming Otters Complete the expression and your otter might win the race! |
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Postie - Variables Help the Postman Phil deliver letters by answering variables equations. |
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Expressions Billionaire Get each question right for a chance to win one-billion dollars. |
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Soccer Equations Solve each equation to get a chance to score a soccer goal. |
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Basketball Equations Get baskets in and answer one-step math equations. |
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Number Balls Equations Popular number balls game for equations with variables. |
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Quiz Show Inequalities Answer questions about inequalities for your team to win. |
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