Interactive practice questions
Is $4$4 rational or irrational?
Rational
A
Irrational
B
Easy
< 1min
Is $\frac{2}{3}$23 rational or irrational?
Easy
< 1min
Is $4.435$4.435 rational or irrational?
Easy
< 1min
Is $\sqrt{81}$√81 rational or irrational?
Medium
< 1min
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