Fast Facts in a Flash

Irrational Numbers

100

Is the fraction 9/10 an irrational number?

No, it is 0.9.

200

Is 83/19 irrational?

Yes, it is 4.368421053...

300

Is pi irrational?

Yes, pi is infinite.

400

 Is a repeating decimal irrational?

No, it is not.

500

If pi is multiplied by something, can it be rational?

No, anything times pi will always be irrational.

Expontents

100

0²⁷ =? 

0

200

2⁴*2⁶=?

2¹⁰

300

8^-2*8^-8=?

8^-10

400

3⁸/3³=?

3⁵ 

500

If 2^4x=16, then what is x?

x=1

Scientific Notation

100

What is the scientific notation of 480?

4.80*10²

200

What is the expanded form of 6.7*10^-4?

.00067

300

What is 1 million in scientific notation?

10⁶

400

What is .000000356 in scientific notation?

3.56*10⁷

500

(5.3*10⁶)/(4.2*10⁴)=?

1.26*10²

Equations

100

3x=21 Solve for x.

x=7

200

56+4x=72 Solve for x.

x=4

300

1+7x=3*5 Solve for x.

x=2

400

(5x-3)/2=11 Solve for x.

x=5

500

6x+3=8x-21 Solve for x.

x=12

Square and Cube Roots

100

2²=4 True or false?

False, it equals 4 and -4.

200

4³=64 True or false?

True.

300

What is 144 in squared form?

12²

400

What is the equation for squared?

x*x

500

What is the equation for cubed?

x*x*x