Rational
Give 3 examples of rational numbers.
Fractions, terminating or repeating decimals, square roots of perfect squares.
Give 3 examples of irrational numbers.
Square roots of imperfect squares, or decimals that go on forever without repeating.
Is the square root of 4 a rational or irrational number? Is it a perfect square or imperfect square? You need TWO answers!
rational number, perfect square
0.71717171717... is a repeating decimal. How would you write this same number as a reduced fraction?
71/99
Estimate the square root of 38. Round to 2 decimal places if needed.
HINT: Use your calculator!
6.16
Convert the number 2.83 to a percent.
283%
The number 83 is between which two perfect squares?
81 and 100 (or 92 and 102)
Estimate the number 7pi. Round to 2 decimal places if needed.
HINT: Use your calculator!
21.99
Simplify -3(6x - 2) using the distributive property.
-18x + 6
Estimate the square root of 25. Round to 2 decimal places if needed.
HINT: Use your calculator!
5
The square root of -47 is between which two integers?
-6 and -7
Evaluate -x when x = -8
8
0.213213213213... is a repeating decimal. How would you write this same number as a reduced fraction?
71/333
(213/999 reduces to this)
Write the number 45.829430184675492849.... as a fraction.
It's impossible! This number goes on forever without repeating, meaning it is IRRATIONAL and cannot be written as a fraction!
Evaluate -3x + 7 when x = -4.
19