Vocabulary
Fractions and Decimals
Rational Approximations
Perfect and Imperfect Squares
Random
100

Which number is considered the numerator and which is the denominator? 

N/D

100

Turn this fraction into a decimal: 0.8

8/10 or 4/5

100

Pi = 3.14159265.... 

Give a rational approximation for R0 of Pi

3/1

100

What is the square root of 1, 4, 9 and 16

1, 2, 3, 4
100

Why is Pi an imperfect square?

Because it goes on forever and never repeats

200

___________: a number that is not a fraction; a whole number that is either positive or negative.

Integer

200

Turn this fraction into a decimal: 5/9

.55555555.......

200

Pi = 3.14159265....

Give a rational approximation for R1 for pi

31/10

200

Which of the following are perfect squares?: Square root of 1, Square root of 2, Square root of 4, Square root of 6 and square root of 8, Square root of 9

Square root of 1, Square root of 4, Square root of 9

200

What does it mean to square a number? Ex: Four squared is ......

To multiply that number by itself. Ex: 4 squared is 4 times 4.

300

_________________: Any number that can be written as a fraction, where both the numerator and the denominator are integers

Rational Number

300

Turn this decimal into a fraction: 1.75

1 3/4 or 1 75/100

300

Pi = 3.14159265....

Give a rational approximation for R2 for pi

314/100

300

Which of the following are imperfect squares: Square root of 6, Square root of 8, Square root of 9, Square root of 24, Square root of 25

Square root of 6, 8 and 24

300

What does it mean to find the square root of a number. 

The square root of a number is the number that, when you multiply the number by itself, equals the number in the square symbol. 

400

_________________: A number which cannot be written as a fraction of two integers. 

Irrational Number

400

Turn this fraction into a decimal: 1.4444444444......

1 4/9

400

Pi = 3.14159265....

Give a rational approximation for R3 for pi

3,141/1,000

400

Give an rational estimate for the square root of 7. 

You will have two minutes...

2.65

400

There is an infinite amount of rational numbers. True or False?

True

500

Which of the following are rational numbers: , Square root of 4, .333333......, Square root of 2, Square root of 49. 

Square root of 4, .33333...., Square root of 49

500

Turn this decimal into a fraction: .28282828282828

28/99

500

The square root of 113 is 10.6301458127

Give a rational approximation for R0, R1, R2 and R3 of the square root of 113

R0 = 10/1, R1 = 106/10, R2 = 1,063/100, R3 = 10,630/1,000

500

Give a rational estimation for the following irrational number: Square root of 24

You have two minutes...

4.85

500

What is Pi used for? 

To find the area or circumference of a circle

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