Question

для украшения новогодней елки купили 5 больших шариков и 7 маленьких дети уже повесили 8 шариков сколько шариков осталось повесить детям

Answer 1

Осталось повесить 4 шарика           7+5=12          12-8=4

Answer 2

Составим уравнение
(5+7)-8=4

Answer 3

According to Google Translate, your message in English is:

Answer in detail. For decorating the New Year's tree, they bought 5 large balls and 7 small ones. The children have already hung 8 balls. How many balls are left for the children to hang?

This is a math problem that can be solved by subtracting the number of balls that have been hung from the total number of balls that have been bought. The formula is:

total number of balls - number of balls hung = number of balls left

Using the numbers given in the problem, we can plug them into the formula and get:

(5 + 7) - 8 = 4

Therefore, the answer is that there are 4 balls left for the children to hang.