Tolong di jawab ya kakak, buat Pr bsk hehe.

1) 20: (-2) + 5 = ...

2) 7 + (-5) x5 = ...

3) 13x (-4) - (-3) = ...

4) 8 + (-12) : 4 = ...

5) 30: (-6) x (-2) = ...

1) 20 : (-2) + 5 = - 5

2) 7 + (-5) * 5 = - 18

3) 13 * (-4) - (-3) = - 49

4) 8 + (-12) : 4 = 5

5) 30 : (-6) * (-2) = 10

Step-by-step explanation:

* Lets revise the order of the operation

- In any problem contains addition, subtraction, multiplication and

division, then the order of operations is multiplication or division

whose come first at first and addition or subtraction whose come

first at second

* Lets solve the problem

1) 20 : (-2) + 5

- At first solve 20 : (-2) ⇒ (20 : (-2))

∵ 20 : (-2) = - 10

∴ 20 : (-2) + 5 = - 10 + 5

∵ - 10 + 5 = - 5

∴ 20 : (-2) + 5 = - 5

2) 7 + (-5) * 5

- At first solve (-5) * 5

∵ (-5) * 5 = - 25

∴ 7 + (-5) * 5 = 7 + (-25)

∵ 7 + (-25) = - 18

∴ 7 + (-5) * 5 = - 18

3) 13 * (-4) - (-3)

- At first solve 13 * (-4)

∵ 13 * (-4) = - 52

∴ 13 * (-4) - (-3) = - 52 - (-3)

∵ - (-3) = + 3

∴ 13 * (-4) - (-3) = - 52 + 3

∵ - 52 + 3 = - 49

∴ 13 * (-4) - (-3) = - 49

4) 8 + (-12) : 4

- At first solve (-12) : 4

∵ (-12) : 4 = - 3 ⇒ (-12 : 4)

∴ 8 + (-12) : 4 = 8 + (-3)

∵ 8 + (-3) = 5

∴ 8 + (-12) : 4 = 5

5) 30 : (-6) * (-2)

- At first we will start with the division because it becomes first

∵ 30 : (-6) = - 5

∴ 30 : (-6) * (-2) = (-5) * (-2)

∵ (-5) * (-2) = 10

∴ 30 : (-6) * (-2) = 10