24-19×8+12-7:9 57-49×7+14-28:7

24-19*8+12-7:9 = -116[latex] \frac{7}{9}[/latex] 1. 19*8 = 152 2. 7:9 = [latex] \frac{7}{9}[/latex] 3. 24-152 = -128 4. -128+12 = -116 5. -116 -[latex] \frac{7}{9}[/latex] = -116[latex] \frac{7}{9}[/latex] 57-49*7+14-28:7 = -276 1. 49*7 = 343 2. 28:7 = 4 3. 57-343 = -286 4. -286+14 = -272 5. -272-4 = -276 66-59*7+17-38:4 = -339,5 1. 59*7 = 413 2. 38:4 = 9,5 3. 66-413 = -347 4. -347+17 = -330 5. -330-9,5 = -339,5 42-33*6+27-9:8 = -130[latex] \frac{1}{8}[/latex] 1. 33*6 = 198 2. 9:8 = [latex]1 \frac{1}{8}[/latex] 3. 42-198 = -156 4. -156+27 = -129 5. -129-[latex]1\frac{1}{8}[/latex] = -130[latex] \frac{1}{8}[/latex] 72-67*6+24-20:17 = -307[latex] \frac{3}{17}[/latex] 1. 67*6 = 402 2. 20:17 = [latex]1\frac{3}{17}[/latex] 3. 72-402 = -330 4. -330+24 = -306 5. -306-[latex]1\frac{3}{17}[/latex] = -307[latex] \frac{3}{17}[/latex]