8th grade STAAR review notes

Label the diagram

c

d

e

f

b

a

natural numbers

Irrational numbers

Real Numbers

rational numbers

integers

whole numbers

Label the numbers into the correct category based on the real number system diagram

Groups:

(a) Natural/ Whole Numbers

,

(b) Integers

,

(c) Rational Numbers

,

(d) Irrational Numbers

• 4/8

• -.8

• 0

• decimals with no pattern

• 5

• -16/4

• weird numbers

• square root of 25

• -3

• -12/9

• -2/3

• square root of 2

• -12

• pi

• 16/4

• negative square root of 36

Match number to its square root

• square root of 25

• 12.20

• square root of 38

• 9

• square root of 149

• 36

• square root of 324, then divided by 2

• 5

• square root of 1296

• 6.16

Solve each equation

You can solve this equations by using the ​ (a)   on your calculator, by pressing the ​ (b)   button or by finding the ​ (c)   of each number. 1) x^2= 225; x=​ (d)   . 2) x^2=49; x=​ (e)  

• c. equation solver
• square root
• 15
• 7
• math

Paula covered a square wall that measures 100 feet squared. What is the measurement of the side length of this wall?

• 10

• 9.35

• 9.44

• 12

Match the correct response to convert using the calculator

• blue button then x2 button

• Decimals to fractions

• divide top number by bottom number

• Percent to decimals

• Divide by 100

• Square roots

• math button

  then fraction option

• Fractions to decimals

To do scientific notation you must change the ​ (a)   of the calculator. Then change normal to​ the (b)   option.

• mode
• SCI

Reorder the following numbers from greatest to least

• square root of 38

• -6.35

• -19/3

• 63%

• -100

When ordering numbers from least to greatest, or greatest to least, you must covert all numbers to ​ (a)   . Make sure that all decimals contain the ​ (b)   amount of numbers after the decimal point. The bigger the ​ (c)   number, the smaller its value.

• decimals
• same
• negative
• different
• fractions
• positive

Match the correct notation

• SCI mode on the calculator

• converting from standard to scientific notation

• 920000

• 7.5 x 10^-4

• .00075

• .0007

• 7 x 10^-4

• 9.2 x 10^5

• 5.4 x 10^6

• 5,400,000