Surds
Add and subtract numerical surds
Interactive practice questions
Since $\sqrt{12}$√12 and $\sqrt{3}$√3 are not like radicals, $\sqrt{12}+\sqrt{3}$√12+√3 cannot be simplified. True or false?
True
A
False
B
Easy
< 1min
Evaluate (to one decimal place if necessary):
Easy
1min
True or False?
$2-\sqrt{2}=\sqrt{2}$2−√2=√2
Easy
< 1min
Simplify: $8\sqrt{3}+18\sqrt{3}$8√3+18√3
Easy
< 1min
Sign up to access Practice Questions
Get full access to our content with a Mathspace account