Question

200-80÷2+60 300-90÷3+70 400+60÷4+85

Answer 1

1) 200-80:2+60=220
80:2=40
200-40=160
160+60=220
2)300-90:3+70=340
90:3=30
300-30=270
270+70=340
3)400+60:4+85=500
60:4=15
400+15=415
415+85=500
как-то так

Answer 2

1) 220
2) 340
3) 470
Порядок действий:
1) деление
2) сложение

Answer 3

To solve the expression 200-80÷2+60+300-90÷3+70+400+60÷4+85, we need to follow the order of operations, also known as the PEMDAS rule (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

Let's break down the expression step by step:

Step 1: Division - Divide 80 by 2 = 40 - Divide 90 by 3 = 30 - Divide 60 by 4 = 15

Now the expression becomes: 200 - 40 + 60 + 300 - 30 + 70 + 400 + 15 + 85

Step 2: Addition and Subtraction (from left to right) - Add 200 - 40 = 160 - Add 160 + 60 = 220 - Add 220 + 300 = 520 - Subtract 520 - 30 = 490 - Add 490 + 70 = 560 - Add 560 + 400 = 960 - Add 960 + 15 = 975 - Add 975 + 85 = 1060

Therefore, the answer to the expression 200-80÷2+60+300-90÷3+70+400+60÷4+85 is 1060.