Odpowiedź:
√81 + ✓9 = 9 +3 = 12
√49 + √36 - √25 = 7 +6 -5=8
5✓144 – √64•√81= 5 x12 - 8x9 = 60-72=-12
(4√49 – 3√25) : √169= (4x7-3x5) : 13 = 13:13=1
√64 – √25= 8 - 5 = 3
√100 . √16 - √121= 10x4 -11=29
3√169 - 4√100= 3x13 - 4x10 =39-40 =-1
(2√64 + √36): √121= (2x8 +6) :11= 22:11= 2