Enrichment Battle #2

Integer Rules

100

-8+15

7

200

-23+19

-4

300

-12-15

-27

400

3-(-12)

15

500

-6-(-18)

12

Combining Like Terms

100

3h+8h

11h

200

2x-3y+4x

6x-3y

300

-3+12-7h+9h

9+2h

400

-17+5b+13-8b

-4-3b

500

2(c-4)+10

2c+2

Fraction Decimal Conversions

100

1/3

0.333...

200

3/4

0.75

300

1.5

1 1/2

400

5/6

0.83333...

500

1 3/8

1.375

Geometry

100

This is the name for the distance across a circle. 

Diameter

200

A circle has a radius of 3. What is it's area? 

9pi or 28.26

300

A rectangular prism has side lengths 5 cm, 4 cm, and 8cm. What is its volume, including units? 

160 cubic cm

400

A circle has a circumference of 16pi. What is its radius?

8

500

Find the volume of a cube with side lengths measuring 4 inches. Include units.

64 cubic inches

Rates and Percents

100

Mr. Martinez drives 300 miles in 5 hours. What is his unit rate in miles per hour? 

60 mph

200

Ms. Whitehead can run 4 miles in 38 minutes. How fast does she run one mile? 

8.5 minutes

300

Ms. O'Hare grades half a class of tests in 20 minutes. How long would it take her to grade 3 classes?

2 hours (or 120 minutes)

400

An item costs $52.80 and is on sale for 20% off. What is the sale price?

$42.24

500

Batch paid for dinner and included an 18% tip. His final bill was $38.35. What was the cost of the food? 

$32.50