Ответ:
1) \(\sqrt{169}=13\); \(\sqrt{324}=18\); \(\sqrt{441}=21\); \(\sqrt{676}=26\).
2) \(\sqrt{2.25}=1.5\); \(\sqrt{3.61}=1.9\); \(\sqrt{5.76}=2.4\); \(\sqrt{7.84}=2.8\).
3) \(\sqrt{11.56}=3.4\); \(\sqrt{48400}=220\); \(\sqrt{68.89}=8.3\); \(\sqrt{72900}=270\).
Ответ: 1) 13; 18; 21; 26. 2) 1,5; 1,9; 2,4; 2,8. 3) 3,4; 220; 8,3; 270.
