Rational Number Operations Jeopardy

Adding/Subtracting Rational #'s

100

 -6 – 12 – (-5)

-13

200

1/10 - 10 2/5 = ANSWER AS A FRACTION

-10 3/10

300

–4.24 + 7.55 – 3.01=

= 0.30

400

13  1/2  +  (–5.7) =

7.8 or 7 4/5

500

–12 3/10 – 3.6  + 8 1/4 =

= - 7.65

Multiplying Rational #'s

100

-3/4  x  0.9 =

-0.675 = -27/40

200

1/10  ÷  –1/8 =

-8/10

300

2  3/4  x  (-1  1/2)  =

–4 1/8

400

–0.2 × 5.5 =

-1.1

500

–16.5 × –4  2/3 = ANSWER AS A FRACTION THEN SIMPLIFY

462/6 = 77

Dividing Rational #'s

100

84 ÷ (-6)

= -14

200

-7.5 ÷ (-0.3)

25

300

8.92 ÷ (-0.45)

-19.82 repeated

400

74 2/5 ÷ –4 = ANSWER AS A FRACTION

-18 3/5

500

–3.75 × –1 2/3 = ANSWER AS A FRACTION

-2 1/4

Mixed Review

100

-8 + (-2) x (-10) = 

= 12

200

(-90) ÷ (-5) x (-2) - (-12)

= - 24

300

(-0.9) - 11.1 ÷(-0.2)

= 60

400

8.7 x (-9.9) + (-5 1/4)

= - 91.38

500

11 1/2 x (-1.65) - 17.77

= -36.745

Word Problems

100

Michael owed $18 and paid back $12. How much does he still owe?

$6 owed

200

Lebron went on a submarine. It was (-314.9) ft deep and after 3 hours it was (-725.6) ft deep. How far did the submarine travel?

-410.7

300

A plane had an elevation of 15,000 ft. It descends 20 feet every second. How many seconds until it touches the ground? BONUS: How many minutes?

750 seconds =12 minutes 30 seconds 12 1/2 minutes

400

A scientist had 2.5 ounces of a chemical. He created 12.5 ounces more of the chemical and then used 3.75 ounces in an experiment. A rat then drank 6.82 ounces before mutating. How much of the chemical is left?

= 4.43 ounces

500

I'm lazy! Write down my favorite soccer team

Arsenal