Question

(40+18):2=40:24 18:2=口 (80+ 16:4= 80:4+ 16:4=口(400+ 1800:2= 400:2+180:2=口(400 + 180):20 = 400:20 + 180:20 -(800+ 160):4= 800:4+ 160:4=口(800 + 160):40 = 800:40 + 160:40 -​

Answer 1

Пошаговое объяснение:

1) 18:2=9

2) 16:4=4

3) 400:2+180:2=290

400:20:180:20=29

800:4+160:4=240

800:40+160:40=24

Answer 2

It looks like you're trying to create mathematical expressions using some operations like addition, division, and equalities. However, your notation is a bit unclear, and it seems there may be some mistakes in the equations you provided. Let me help you clarify and correct them:

1. (40 + 18) / 2 = 40 / 24 This equation is correct.

2. 18 / 2 = 口 I'm not sure what you intended with "口" here. It's not a standard mathematical operation or symbol.

3. (80 + 16) / 4 = (80 / 4) + (16 / 4) = 20 + 4 = 24 This equation is correct.

4. (400 + 1800) / 2 = (400 / 2) + (1800 / 2) = 200 + 900 = 1100 This equation is correct.

5. (400 + 180) / 20 = (400 / 20) + (180 / 20) = 20 + 9 = 29 This equation is correct.

6. (800 + 160) / 4 = (800 / 4) + (160 / 4) = 200 + 40 = 240 This equation is correct.

7. (800 + 160) / 40 = (800 / 40) + (160 / 40) = 20 + 4 = 24 This equation is correct.

So, it seems that most of your equations are correct, except for the one involving "口," which is not standard mathematical notation. If you have any specific questions or need further assistance, please provide more context or clarify your equations.