Question

1)-540:(45-36(-4))*6 2)240-240:(-55+15)*(-20) 3)-220:(-36+14)*11-8 5)-39*91+29*91 4)-(679-28)-(45-679

Answer 1

Ответ:

1.

$- \frac{120}{7}$

2. 120

3. 102

5. -910

4. -17

Answer 2

1) First, solve the expression inside the parentheses: 45 - 36(-4) = 45 + 144 = 189

Then, divide -540 by 189: -540 / 189 = -2.857

Finally, multiply by 6 and add 2: -2.857 * 6 + 2 = -17.142

2) First, solve the expression inside the parentheses: -55 + 15 = -40

Then, divide 240 by -40: 240 / -40 = -6

Finally, multiply by -20 and add 3: -6 * (-20) + 3 = 123

3) First, solve the expression inside the parentheses: -36 + 14 = -22

Then, divide -220 by -22: -220 / -22 = 10

Finally, add 11, -8, and 5: 10 * 11 - 8 + 5 = 107

4) First, multiply 39 by 91 and 29 by 91: 39 * 91 = 3549 29 * 91 = 2639

Then, subtract the second result from the first and subtract 4: 3549 - 2639 - 4 = 906

5) First, subtract 28 from 679: 679 - 28 = 651

Then, subtract the result from the previous calculation from 45 and add 679: 45 - 651 + 679 = 73

In summary: 1) -2.857 2) 123 3) 107 4) 906 5) 73