a)
\sqrt{25}-\sqrt{36}=5-6=-1
b)
\sqrt{169}+\sqrt{16}=13+4=17
c)
\sqrt{81}-(-\sqrt{49})=9+7=16
d)
\sqrt{36}+\sqrt{64}-\sqrt{25}=6+8-5=9
e)
\sqrt[3]{8}-\sqrt[3]{27}+\sqrt[3]{1}=2-3+1=0
f)
\sqrt[3]{27}+(-\sqrt[3]{64})-(-\sqrt[3]{125})=3+(-4)-(-5)=3-4+5=4
g)
\sqrt[3]{125}+\sqrt{25}-\sqrt[3]{1000}=5+5-10=0
h)
\sqrt{169}+\sqrt{36}-\sqrt[3]{216}=13+6-6=13