Pre-Algebra (Double Jeopardy)

Adding Integers

200

3.8+7.1

10.9

400

8-(-20)

28

600

2+3(-8)

-22

800

-3(8+5)

-39

1000

7+6²/9

11

Solve

200

What number plus seven equals 11?

4

400

What number minus nine equals 5?

14

600

Three times what number equals 21?

7

800

Negative 6 equals thirty divided by what number?

-5

1000

The difference of three times a number and four is fourteen.

6

Inequalities

200

a+3<10

a<7

400

b/8>13

b>104

600

-5d<40

d>-8

800

3w+8>17

w>3

1000

-6r+3>9-7r

r>6

Equations

200

x/8+12=-5

x=-136

400

11a+9-3a=-7

x=-2

600

-8=14-d/9

d=-54

800

49=-6b+9+2b

b=-10

1000

d+3=2(9-d)

d=5

Evaluate

200

Evaluate 8xy when x=-7 and y=5

-280

400

Evaluate 27+3y²+x when x=-7 and y=5

95

600

Evaluate 35+4x+y when x=-7 and y=5

12

800

Evaluate 12xy² when x=-7 and y=5

-2100

1000

Evaluate 3(x+4)-y when x=-7 and 7=5

-14