Question

1) 56:(-7)+3; 2)-8•(5)+75:(-15); 3) (12-28) : (-4)•5; 4) 19-(2-18:3); 5)-60:15+7•(6-14); 6)-11•(5-9)-60:(-12).

Answer 1

1) 56:(-7)+3 = -8+3 = -5

2) -8*5+75:(-15) = -40-5 = -45

3) (12-28) : (-4)*5 = -16 : -20 = 0,8

4) 19-(2-18:3) = 19-(2-6) = 19-(-4) = 19+4 = 23

5) -60:15+7*(6-14) = -4+7*(-8) = -4-56 = -60

6) -11*(5-9)-60:(-12) = -11*(-4) - (-5) = 44+5 = 49

Answer 2

Let's solve each of these mathematical expressions step by step:

1. 56 - (-7) + 3: = 56 + 7 + 3 = 66

2. -8 * 5 + 75 / (-15): = -40 - 5 = -45

3. (12 - 28) / (-4) * 5: = (-16) / (-4) * 5 = 4 * 5 = 20

4. 19 - (2 - 18 / 3): = 19 - (2 - 6) = 19 - (-4) = 19 + 4 = 23

5. -60 / 15 + 7 * (6 - 14): = -4 + 7 * (-8) = -4 - 56 = -60

6. -11 * (5 - 9) - 60 / (-12): = -11 * (-4) + 5 = 44 + 5 = 49

So, the solutions to the given expressions are:

1. 66
2. -45
3. 20
4. 23
5. -60
6. 49