Math or Miss (Unit 1-2 Review)

Invisible Math

100

In the expression x+7, what is the invisible coefficient of x? Rewrite the expression so the coefficient is visible.

1,  1x + 7

200

Rewrite 4a using a multiplication symbol.

4 * a

300

Rewrite -9 as a fraction with an invisible denominator of 1.

-9/1 

400

Evaluate both expressions:

• -3²

• (-3)²

Are they equal? Explain why or why not.

1.) -9

2.) 9

500

Rewrite the expression by making all hidden conventions visible:

y-4+2y

+1 * y - 4 + (2 * y)

Expression Surgery

100

Combine Like Terms:

3x + 5x

8x

200

Simplify:

7a + 4 - 2a + 9

5a + 13

300

Use the distributive property to simplify:

5(2x - 3)

10x - 15

400

Simplify:

-3(2x -5) + 4x - 7

-2x - 8

500

Simplify:

2x(x -5) - 3y(y² +2) 

2x² - 10x - 3y³ - 6y

Plug It In!

100

Evaluate x + 8 when x = 5

13

200

Evaluate 4n - 3 when x = -2

-11

300

Evaluate 2a² + 5 when a = -3

23

400

Evaluate 3x - 2(x + 4) when x = -5

-13

500

A gaming score is represented by 4p² - 3(p+2)+10. Evaluate the expression when p=-2.

26

Same Number, New Look

100

Write the fraction 1/2 as a decimal and a percentage.

0.5, 50%

200

Write 0.375 as a fraction in simplest form and as a percentage.

3/8, 37.5%

300

Complete the equivalent representation:

7/20 = ___________ = ____________%

0.35, 35%

400

Determine whether the fractions 5/8 and 2/3 have terminating or repeating decimal representations.

5/8 = 0.625, terminating

2/3 = 0.6666666, repeating

500

Solve:

1/4 + 0.1 + 2/8 + 0.40

1

Sign Struggles

100

Solve:

-8 + 13

5

200

Solve:

-14 - (-6) =

-8

300

Solve:

-2.75 + 1.5 - (-0.5) = 

-0.75

400

A soccer player’s position changes by -3.5 meters, then +6.25 meters, and then -1.75 meters.

What is the total change in position?

1 meter

500

Solve:

-2 ⅝ + 3 ¼ - ½ = 

1/8