Algebra

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What is algebra?

Back

Algebra is a branch of mathematics that uses symbols (like letters) to represent numbers in equations and formulas.

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CCSS.8.F.A.3

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What does it mean to 'increase a number'?

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To increase a number means to add a certain value to it.

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CCSS.1.OA.A.1

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If a number increased by 4 equals 14, what is the number?

Back

10

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CCSS.6.EE.B.7

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What does 'five more than a number' mean?

Back

It means to add 5 to that number.

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CCSS.6.EE.B.6

Front

If five more than a number is 9, what is the number?

Back

4

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CCSS.6.EE.B.6

Front

What is the value of x in the equation x - 2 = 10?

Back

12

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CCSS.6.EE.B.7

Front

What does 'a + 5 - 2 = 3' imply about the value of a?

Back

It implies that a = 0.

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CCSS.6.EE.B.5

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What does 'not possible' mean in the context of equations?

Back

It means that there is no solution that satisfies the equation.

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CCSS.8.EE.C.7A

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If I have u soft toy salamanders and I get v more, how many do I have now?

Back

u + v

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CCSS.6.EE.B.6

Front

What is a variable in algebra?

Back

A variable is a symbol (like x or y) that represents an unknown value.

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CCSS.6.EE.A.2B