Chapter 1, 2, 11

Classifying Numbers

100

True or False: -1,-3,-2 are integers.

True

200

True or False: square root of 5 is irrational, explain why

True, because the decimal will never end and never repeat

300

True or False: 1/3 is irrational, explain why

False, rational numbers are any number that can be set up as a fraction, 1/3 is a fraction

400

True of False: 4/2 would be placed on the whole number set in a diagram.

False, it would be in the natural number set

500

True of False: Square root of 16 is irrational.

False, it is a counting number.

Scientific Notation

100

What is 23,500,000 in scientific notation?

2.35x10⁷

200

What is 0.0004 in scientific notation?

4x10^-4

300

What is 2,350,000 in scientific notation?

2.35x10⁶

400

What is 47,501,000 in scientific notation?

4.7501x10⁷

500

What is 0.00000401 in scientific notation?

4.01x10^-6

Square Roots

100

What is the square root of 81?

9

200

Double Points!!

What is the least common multiple of:

2,3,4,5?

60

300

Between which whole numbers is the square root of 23

4< square root 23 <5

400

Is the square root of 78 closer to 8 or 9?

9

500

Is the square root of 273 closer to 16 or 17

17

Ordering Real Numbers

100

Write the numbers in least to greatest:

-3, 5/2 , 2 , -9/4 , 4

-3, -9/4, 2, 5/2,4

200

Write the numbers in order from greatest to least

3, square root of 10, 3/4, 0.7, -1.5

square root of 10, 3, 3/4, 0.7,-1.5

300

Write the numbers from greatest to least:

3.3, 3.13, 3.133, -3.3, 0

3.3, 3.133, 3.13, 0, -3.3

400

Write the following temperatures from coldest to warmest:

33^o  67^o   27^o  89^o  -3^o

-3^o , 27^o , 33^o , 67^o , 89^o

500

Write the numbers in ascending order.

-0.5, 1.5, -2, -0.75,  square root of 7

-2,-0.75,-0.5, 1.5, square root of 7

Equations/Inequalities

100

Solve:

3x+5=x+9

x=2

200

Solve: 

2.25t + 5 = 13.5t + 14

t=-0.8

300

Solve:

(7/10) n + (3/2) = (3/5)n + (2/5)

n=-11

400

A store charges $1.25 per bathroom tile and lets you use their installation tools for free. Another store charges $0.75 per tile but charges you $50 to use their tools. How many tiles would you need to buy for the total cost to be the same?

1.25x=0.75x+50

x=100

500

Write the inequality:

Nice Cars charges $10 per hour to rent a car. Cars Deluxe charges $5.50 per hour to rent a car plus a flat fee of $31.50 per rental. After how many hours is it more expensive to rent a car from Nice Cars?

10x > 5.5x + 31.5.