Question

Для упрощения трёх одинаковых ёлок необходимо 9 игрушек. на сколько больше игрушек необходимо для украшения семи таких ёлок

Answer 1

1) 9 : 3 = 3 (игрушки) - на 1 елку

2) 3 × 7 = 21 (игрушка) - для 7 елок

3) 21 - 9 = 12 (игрушка) - разница

Answer 2

1)9/3=3
2)7*3=21
3)21-9=12

Answer 3

Calculating the Number of Ornaments Needed for Christmas Trees

To simplify three identical Christmas trees, 9 ornaments are needed. We can calculate how many more ornaments are needed to decorate seven such trees.

Calculation: - For three trees: 9 ornaments - For one tree: 9 / 3 = 3 ornaments - For seven trees: 3 * 7 = 21 ornaments

So, 21 more ornaments are needed to decorate seven identical Christmas trees.