Фото-задача

Solving word problems clearly

I’m working on a word problem where a painter paints 10 doors, and his student paints 3 fewer, making 7 doors. So, together they painted 17 doors. I might express this as 10 + (10 - 3) = 17.

Now, for another problem, if there are 2 armchairs and 4 more chairs than armchairs, the question could be: "How many armchairs and chairs are in the room?" It leads to 2 + 4 = 6 chairs, making a total of 8.

Finally, I’m looking at operations involving circles and squares that need clarification.Solving a math puzzle

I'm trying to interpret symbols where circles likely represent plus or minus signs, and squares might be numbers. I need to test possible operations to reach a specific value.

For instance, figuring out 46 ? 4 ? 10 = 52 leads to the conclusion that it could be represented as 46 - 4 + 10 = 52. Similarly, for 30 ○ □ = 40, I suspect that the circle is a plus and the number to fill in is 10, so 30 + 10 = 40, while for 60 ○ □ = 54, it seems likely to represent 60 - 6 = 54.

Also, I'm working through a word problem about the steps of a monkey, duck, and elephant, figuring out their differences in stride lengths. Ultimately, the duck is determined to be 30 cm shorter than the elephant.