NUMBER SYSTEMS
GENERAL KNOWLEDGE
100

This type of number cannot be written as a fraction and has a non-terminating, non-repeating decimal.

What is an irrational number?

100

This is the only even prime number.

What is 2

200

Between which two consecutive integers does √20 lie?

What are 4 and 5?

200

The sum of the angles in a triangle equals this number of degrees.

What is 180 degrees?

300

Which is greater: √50 or 7?

What is √50?

300

This is the value of π (pie) rounded to two decimal places.

What is 3.14?

400

Between which two tenths does √18 lie?

What are 4.2 and 4.3?

400

This property states that changing the grouping of numbers does not change the sum or product.

What is the Associative Property?

500

Explain why 0.454545… is rational.

What is because it is a repeating decimal and can be written as a fraction (45/99 or 5/11)?

500

The distance around a circle is called this.

What is the circumference?

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