Question

4000:800+1500:30-2800:28

Answer 1

4000÷800+1500÷30-2800:28= -45

Answer 2

1) 4000 ÷ 800 = 5
2) 2800 ÷ 28 = 100
3) 1500 ÷ 30 = 50 
4) 4 + 50 = 55
5) 55 - 100 = -45
Ответ: -45

Answer 3

To solve this expression, you need to follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders, Multiplication, and Division (from left to right), and Addition and Subtraction (from left to right). The expression given is:

4000:800 + 1500:30 - 2800:28

Let's perform the calculations step by step:

Step 1: Division 4000:800 = 5 1500:30 = 50 2800:28 = 100

After performing the division, the expression becomes: 5 + 50 - 100

Step 2: Addition and Subtraction 5 + 50 = 55 55 - 100 = -45

So, the final answer is -45.