Разгадайте числовой кроссворд. a) 13 320 По горизонтали По вертикали 1. 40.3. 3 1. 21:3 4 4 5 2.1.24. 3. 20:4 200 2 5 5. 100.2. 4. 100:2 3 6 1240 8. 120. 1 2 6.8:. 2 8 250 9 9.1.18. 3 7.32:4

Решим числовой кроссворд.

а)

По горизонтали:

1. $$40 \cdot \frac{3}{4} = \frac{40 \cdot 3}{4} = \frac{120}{4} = 30$$
2. $$\frac{1}{2} \cdot 24 = \frac{24}{2} = 12$$
3. $$100 \cdot 2 \frac{1}{2} = 100 \cdot \frac{5}{2} = \frac{100 \cdot 5}{2} = \frac{500}{2} = 250$$
4. $$120 \cdot \frac{1}{2} = \frac{120}{2} = 60$$
5. $$1 \frac{1}{3} \cdot 18 = \frac{4}{3} \cdot 18 = \frac{4 \cdot 18}{3} = \frac{72}{3} = 24$$

По вертикали:

1. $$21 : \frac{3}{5} = 21 \cdot \frac{5}{3} = \frac{21 \cdot 5}{3} = \frac{105}{3} = 35$$
2. $$20 : \frac{4}{5} = 20 \cdot \frac{5}{4} = \frac{20 \cdot 5}{4} = \frac{100}{4} = 25$$
3. $$100 : \frac{2}{3} = 100 \cdot \frac{3}{2} = \frac{100 \cdot 3}{2} = \frac{300}{2} = 150$$
4. $$8 : \frac{1}{2} = 8 \cdot 2 = 16$$
5. $$32 : \frac{4}{3} = 32 \cdot \frac{3}{4} = \frac{32 \cdot 3}{4} = \frac{96}{4} = 24$$

Заполним кроссворд:

+---+---+---+
| 3 | 0 |   |
+---+---+---+
| 3 | 2 |   |
+---+---+---+
|   | 5 |   |
+---+---+---+
|   |   | 1 |
+---+---+---+
| 2 | 5 |   |
+---+---+---+
| 5 | 0 |   |
+---+---+---+

Заполним кроссворд:

+---+---+---+   +---+---+---+   +---+---+---+
| 3 | 0 |   |   | 3 | 2 |   |   | 3 | 2 | 0 |
+---+---+---+   +---+---+---+   +---+---+---+
| 3 | 2 |   |   |   | 5 |   |   |   | 5 |   |
+---+---+---+   +---+---+---+   +---+---+---+
|   | 5 |   |   |   | 0 |   |   | 2 | 0 | 0 |
+---+---+---+   +---+---+---+   +---+---+---+
|   |   | 1 |   |   |   | 1 |   | 2 | 4 | 0 |
+---+---+---+   +---+---+---+   +---+---+---+
| 2 | 5 |   |   | 2 | 5 |   |   | 2 | 5 | 0 |
+---+---+---+   +---+---+---+   +---+---+---+
| 5 | 0 |   |   | 5 |   |   |   +---+---+---+
+---+---+---+   +---+---+---+   | 6 | 0 |   |
                      +---+---+---+

Ответ: смотри решение выше