Equations and Expressions Jeopardy

Equations

100

Find the missing value of the variable:

x + 3 = 7

x = 4

200

Find the missing value of the variable:

4w = 48

w = 12

300

Find the missing value of the variable:

w/6 = 12

w = 72

400

Find the missing value of the variable:

15y = 165

y = 11

500

x² = 64

x = 8

Equivalent Expressions

100

Are 3x + 1 and 2x + 2 equivalent expressions? Explain your thinking.

They are not equivalent expressions because they will not always give the same result for every value of the variable.

200

Are x and 1x equivalent expressions?

Yes they are equivalent expressions because they give the same result for every value of the variable.

300

Are x + x + x and 3x equivalent expressions?

They are equivalent expressions because they give the same result for every value of the variable.

400

Are 4x and 4^x equivalent expressions?

They are not equivalent expressions because they do not give the same result for every value of the variable.

500

Are x³ and (x)(x)(x) equivalent expressions?

They are equivalent expressions because they give the same result for every value of the variable.

Distributive Property

100

Use the distributive property to simplify:

3(2x + 4)

6x + 12

200

Use the distributive property to simplify:

4(5x - 1)

20x - 4

300

Use the distributive property to simplify:

4(2x-6)

8x-24

400

Factor this expression:

7(2-x)

14-7x

500

Factor this expression:

27(x + 3)

27x + 81

Exponents

100

Evaluate 3².

9

200

Evaluate 3⁴ - 4³.

17

300

Evaluate 6x³ if x = 3.

162

400

Evaluate

2w + w(w)

 if w =4.

24

500

Evaluate

12/r - 1.5

r=2

.

4.5

Miscellaneous

100

What does PEMDAS/GEMDAS stand for?

Parenthesis/Grouping

Exponents

Multiplication

Division

Addition

Subtaction

200

A negative plus a negative gives what type of answer?

Negative

300

What does KCO in subtraction do?

Keep the first value, Change the minus to plus and do the Opposite sign of the second value.

400

How do you divide fractions?

KCF

Keep the first fraction, Change division to multiplication and Flip the numerator and the denominator (reciprocal)

500

How do you go from a decimal to a percent and a percent to a decimal?

Decimal to percent- move decimal two times to the right and include the percent symbol

Percent to decimal- move the decimal two times to the left