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Worksheets1-1 Lesson Check
Total questions: 12
Worksheet time: 7mins
To which subset(s) of the real number system does the number belong?
1.5
whole numbers
natural numbers
rational numbers
irrational numbers
Determine if the expression below represents a rational or irrational number.
43+21
Rational Number
Irrational Number
Determine if the expression below represents a rational or irrational number.
5+2
Rational Number
Irrational Number
Determine if the expression below represents a rational or irrational number.
π÷7
Rational Number
Irrational Number
Which numbers in Set A = {−7, −4, 2, 14, 21, 34, 42} are elements of both Set B and Set C, shown below?
Set B = {even numbers}
Set C = {multiples of 7}
{−4, 2, 14, 21, 42}
{−7, 14, 21, 42}
{14, 21, 42}
{14, 42}
Determine if the expression below represents a rational or irrational number.
4π−8
Rational Number
Irrational Number
Determine if the expression below represents a rational or irrational number.
4π−4π+36
Rational Number
Irrational Number
The product of a rational and an irrational number is
(sometimes, always, or never) irrational.
(a)
What is a rational number?
A rational number is a number that cannot be written as a fraction.
A rational number is a number that can be written as a ratio.
A rational number cannot be a repeating decimal.
Which number is irrational?
9.6
√45
3/8
3.4 x 10⁵
Which of the following is rational?
.211232112421125. . . .
π
√25
√12
Which number is an irrational number?
2.5
5.72314....
-17
1/2
