Question

50+40-89+39+30-45=?​

Answer 1

Ответ:

Пошаговое объяснение:

50+40=90

90-89=1

1+39=40

40+30=70

70-45=25

Answer 2

To solve this arithmetic expression, you simply need to follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right).

In your expression:

50 + 40 - 89 + 39 + 30 - 45

Let's break it down step by step:

1. Addition and Subtraction from left to right:
   • 50 + 40 = 90
   • 90 - 89 = 1
   • 1 + 39 = 40
   • 40 + 30 = 70
   • 70 - 45 = 25

So, the answer is 25.