Math Jeopardy

Order of Operations 7th & 8th

100

(12+2) - 10 x .5=?

9

200

5+10(8+21÷3)=?

155

300

Where should the parentheses go to make this expression true?

12x4+2-10=60

12x(4+2)-10=60

400

6(28÷7+14÷7)+8=?

44

500

Where should the parentheses go to make this expression true?

9×9+7+54÷9=150

9×(9+7)+54÷9=150

Scientific Notation 8th

100

8.7 × 10²

870

200

1.47 × 10⁶

1470000

300

1.8 × 10^-2

.018

400

8.336 × 10⁸

833,600,000

500

5.751 × 10^-5

.00005751

Algebraic Equations 7th & 8th

100

12 + 1x = 22  

x=10

200

3 + 4x = 11

x=2

300

133 - 10x = 53

x=8

400

3x - 7 = -6x + 47  

x=6

500

78 + 3x = 90 + -1x

x=3

Slope 7th & 8th

100

What is the slope of this line?

y=3x + 4

Slope = 3

Rise 3, Run 1

200

What is the Y-intercept of this line?

y= 2x - 5

Y-intercept = -5

300

Find the slope of this line using these coordinates:

(1,2) (3,4)

Slope = 1

y₂-y₁/x₂-x₁

400

DOUBLE POINTS!

Find the slope of this line using these coordinates:

(-6,1) (0,7)

Slope = 1

500

Find the slope of this line using these coordinates:

(6,2) (8,-4)

Slope = -3

Percentages 7th & 8th

100

Convert this percent to a decimal:

122% 

= 1.22

200

Convert this decimal to a percent:

.015

= 1.5%

300

What is 25% of 124?

= 31

400

What is 200% of 180?

= 360

500

11 is what percent of 96?

= 11.46