Вычислите: 1) 8,1 : 2 − 4,2; 2) 6,9 : 3; 3) 9,36 : 3; 4) 12,066 : 6; 5) 21,7 : 7; 6) 32,84 : 4; 7) 81,9 : 9; 8) 41,68 : 8; 9) 14,84 : 4.

Question

Accepted Answer

\(8.1:2-4.2=4.05-4.2=-0.15\);
\(6.9:3=2.3\);
\(9.36:3=3.12\);
\(12.066:6=2.011\);
\(21.7:7=3.1\);
\(32.84:4=8.21\);
\(81.9:9=9.1\);
\(41.68:8=5.21\);
\(14.84:4=3.71\).

Ответ: 1) −0,15; 2) 2,3; 3) 3,12; 4) 2,011; 5) 3,1; 6) 8,21; 7) 9,1; 8) 5,21; 9) 3,71.