Irrational/Rational
Decimal To Fraction
Imperfect Approximations
Math Knowledge
Random
100

The square root of an imperfect square.

What is irrational.

100

The first step in converting from decimal to fraction.

Put the decimal over 1.
100

Square Root of 35.

3.7-3.9

100

A negative times a negative.

Positive

100

How many legs does a spider have?

Eight

200

The cube root of a perfect cube.

What is rational?

200

The second step in converting decimal to fraction.

Multiply top and bottom by 10.

200

Square Root of 68.

8.1-8.4

200

What is 104

10,000

200

What is called when birds fly to warmer climates for winter?

Migration

300

Cube root of 1000.

What is rational.

300

First step in converting from fraction to decimal.

Long divide numerator by denominator.

300

Square Root of 83.

9.1-.9.3

300

Any number raised to the zeroith power is...

1

300

What does the Richter scale measure?

Earthquakes

400

A fraction of two integers is always.

Rational

400
How do you know when you are done converting from a fraction to a decimal?

Decimal terminates or repeats (either)

400

Square Root of 112.

10.4-10.6

400

In order to add or subtract fractions we must first make sure that they have...

Common bases (denominators)

400

Solve for x. 48 = x2 - 16.

x=8

500

Which of these is an irrational number?

Cube root of 100.

Square root of 16.

Cube root of 8.

Square Root of 64.

What is the Cube Root of 100?

500

22/7 is the rough approximation of what irrational number?

Pi.
500

Square Root of 15.

3.6-3.9

500

22/7 is a rational approximation of what irrational number?

Pi.

500

What is the closest star to earth?

The sun

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