PreAlgebra Chapter 1 Review

Scientific Notation

100

Write  35,100,000,000,000 in scientific notation.

What is  3.51 x 10¹³

200

Write 8.2 x 10^-8  in standard form

What is  .000000082

300

Find the value of the expression written in scientific notation

(2.2 x 10^-7) (3.6 x 10^-11)

What is  7.92 x 10^-18

400

Find the value of the expression written in scientific notation

(5.3 x 10⁹) (8.7 x 10⁶)

What is  4.611 x 10¹⁶

500

The mass of Mars is 7.2 x 10¹³ megatons.  The mass of Pluto is 1.6 x 10⁸ megatons.  How many times larger is Mars than Pluto?  Write your answer in scientific notation.

What is 4.5 x 10⁵ times larger

Roots

100

Find the square root of 324

What is 18

200

Find the cube root of 125

What is 5

300

Find the square root of  -100

No solution

400

Find the square root of  49/400

What is 7/20

500

Solve  x²=225

What is x= +-15

Estimating Roots

100

The two consecutive whole numbers the square root of 75 is between

What is 8 and 9

200

The two consecutive whole numbers that the square root of 140 is between

What is 11 and 12

300

The two consecutive whole numbers that the cube root of 16 is between

What is 2 and 3

400

Estimate the square root of 125 to the nearest tenths place

What is 11.2

500

Estimate the square root of 285 to the nearest tenths place

What is 16.9

Classifying Numbers

100

True/False:  Pi is a rational number

What is False

200

True/False:  4.555555.......  is a rational number

What is  True

300

Choose all categories that  3/5 belongs to:
rational

irrational

whole

integer

real

What is rational and real

400

Choose all categories that  the square root of 20 fits:

rational

irrational

whole

integer

real

What is irrational and real

500

Put these numbers in order from least to greatest:

6

-5/8

square root of 38

-1

6 1/2

What is:

-1  ,  -5/8  ,  6  ,  SR 38  ,  6 1/2

Mix-up

100

Name a rational number that is not a whole number

Possible answers:

decimals, fractions, anything negative

200

The decimal factor in scientific notation must always be between what two values

What is 1 and 10

300

When using a calculator to find the cube root of 4096, write the sequence of buttons you must press (tell ALL buttons in order)

What is:

3  ,  2nd  ,  up carat (or x radical),  4096  ,  Enter

400

A cube has a volume of 64 cubic centimeters.  Find the length of one side of the cube

What is 4 cm

500

A square has an area of 36.  Find the perimeter of the square

What is 24