Math 7 Review

Scientific Notation

100

Coefficients should be between what numbers?

What is 1 and 10.

200

How is the following incorrect 23.45 x 10¹²? Fix the mistake.

What is 2.345 x 10¹³.

300

Write 0.000000524 in scientific notation.

5.24 x 10^-7

400

Write 234,098,836,867,846,821,000 in scientific notation. (Hundredths place is only required)

What is 2.34 x 10²⁰

500

Jason and Jaxson need to write 6,800,000,000,000 using scientific notation. Jason wrote 6,800,000,000,000= 6.8 x 10¹² and Jaxson wrote 6,800,000,000,000= 6.8 x 10¹³. Who was correct, and why?

Who is Jason, because you only have to move the decimal 12 times to the left create the coefficient of 6.8. 

It Gets Real!

100

A Real Number is...

What is any number you can think of 

200

How would you categorize the square root of 17?

What is an Irrational Number

300

An Integer is..

What is a Positive or Negative Whole Number, and Zero.

400

How would you categorize the square root of 16? (Name All)

Whole Number, Integer, Rational Number AND Real Number

500

Pi is categorized as what kind of number?

What is an irrational number.

Perfect Squares

100

5²

What is 25

200

What is the square root of 196?

What is 14

300

The square root of 80 would be found where on a number line?

What is between 8 and 9.

400

Holly claims that the square root of 110 would be between 11 and 12 on the number line. Is she correct? If no, what would be the correct placement?

What is no, the correct placement would be between 10 and 11

500

Which of the following inequalities is correct?

A. 13² < 216 <14²

B. 11² < 118 <12²

C. 14² < 216 < 15²

D. 9² < 118 < 10²

What is C. 14² < 216 < 15²

Order Up!

100

What is the first step in placing a list of numbers of various forms in order?

What is convert each number to a decimal.

200

Descending order is

What is from greatest to least.

300

What order is the following list in?

 -3/4, -8/11, -0.21, -1/10

What is least to greatest/ascending order. 

400

Put the following in order from greatest to least.

38%, -19/6, 3.12, 3 3/8

What is -19/6, 38%, 3.12, 3 3/8

500

Order the following in ascending order:

-1 1/3, -1.12, 1 2/3, -8/7, 12/11

What is -1 1/3, -8/7, -1.12, 12/11, 1 2/3

Proportional or Nah?

100

How do you find the constant of variance (k)?

What is y over x (y/x).

200

What is the key indication that graph shows a proportional relationship. 

What is the graph passes through the origin.

300

A car travels at a constant rate. If it takes the car travels 273 miles in 3 hours, how many miles will they travel in 14 hours?

What is 1,274.

400

Does the following represent a proportional relationship? If so, what is the constant of variance?

{(3, 42), (5, 70), (10, 140), (12, 168)}

What is yes, k=14.

500

Y varies directly with x. If y is 4 when x is 24, what is the value of y when x is 72?

What is 12.