Math Practice Topic: Variable Substitution 2

Description: Evaluate expressions with multiple variables, sometimes with exponents. You may need pencil and paper.

Adaptive Learning Progression: Starts simple, the introduces exponents and then negative numbers.

Sample Levels (out of 8)

Evaluate.

1.
Evaluate: 2y + y - y + x + 3z
where x=3,y=5,z=2.

Evaluate.

1.
Evaluate: - 3z 2 + y - z 2 - 2z 2
where y=5,z=1.
2.
Evaluate: -z 3 - 2z - 3y 3 - 2x 2
where x=4,y=1,z=1.

Evaluate.

1.
Evaluate: z 3 + 3z + 2y + 3x 3
where x=-1,y=4,z=2.
2.
Evaluate: 2z 3 + 2x 3 - 3y + 2z
where x=-1,y=6,z=2.
3.
Evaluate: - 2x + 3y 3 + 3y 3 + 3x 2
where x=1,y=-2.

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