Rational
Irrational
Squares
Cubes
Exponents
100
Is 12.3 rational? Why or why not?
Yes- it can be written as a fraction.
100
Is 73/99 an irrational number? Why or why not?
Yes- it can be written as a fraction
100
What is sqrt (25) ?
5 or -5
100
What is root(3)(512 ?
8
100
Rewrite 3⁻⁴ to have a positive exponent.
1/3^4
200
Is 99 a rational number? Why or why not?
Yes- it can be written as a fraction,
99/1
200
Give one example of non-terminating, non-repeating decimal.
3.142123657890............. or
pi
200
a x a = 225 , what is a?
15
200
What is 43 ?
64
200
Simplify 8^7 /8^5 .
82
300
Is pi a rational number? Why or why not?
No- it cannot be written as a fraction.
300
Is 0.bar8 an irrational number? Why or why not?
Yes- it can be written as a faction:
8/9
300
What is square root of 289?
17
300
Which of the following is true about the number 1000? Explain why.
a. Its cube root is 10
b. Its a perfect square
c. Its square root is 10
d. All of them are true
a. Its cube root is 10- 10 x 10 x 10 = 1000
300
According to exponent rules, when we raise the power to a power, we _______ the exponents.
multiply
400
Is 23.45 a rational number? What type of decimal is it?
Yes- it is a terminating decimal .
400
Is pi + 4 an irrational number? Why or why not?
It is- pi is irrational (can't be written as a fraction) and adding 4 won't change that.
400
The sqrt20 is between which two integers?
4 and 5
400
What is -root (3)(125) ?
-5
400
Simplify 2^8 * 2^2 .
210
500
Is 0.121212...... a rational number? Why or why not?
Yes- it can be written as a fraction,
12/99 = 4/33
500
Ms W wrote four irrational numbers on the board and asked Jordan to choose the irrational numbers .Which irrational number should Jordon choose?
√8
√16
√13
√100
√8
√13
500
Is 65 a perfect square or a non-perfect square? What is the square root?
on-perfect square- about 8.1
500
What is 10 root(3)(8) ?
20
500
Simplify the exponential expression:
2x2