Question

1) 25 ⋅ 78 ⋅ 4; 4) 49 ⋅ 9 + 21 ⋅ 9; 2) 2 ⋅ 49 ⋅ 50; 5) 316 ⋅ 5 − 216 ⋅ 5. 3) 3 ⋅ 5 ⋅ 8 ⋅ 3 6) 239 ⋅ 47 + 239 ⋅ 53.

Answer 1

Ответ:

1) 25×78×4 = 100×78 = 7800

2) 2×49×50 = 100×49 = 4900

3) 3×5×8×3 = 3×40×3 = 120×3 = 360

4) 49×9+21×9 = 441+189 = 630

5) 316×5-216×5 = 1580-1080 = 500

6) 239×47+239×53 = 239×100 = 23900

Удачи!

Answer 2

Ответ:

7800, 4900, 360, 630, 500, 2390

Пошаговое объяснение:

Answer 3

Let's solve these mathematical expressions step by step:

1. 25 ⋅ 78 ⋅ 4: = 25 * 78 * 4 = 1950 * 4 = 7800

2. 2 ⋅ 49 ⋅ 50: = 2 * 49 * 50 = 98 * 50 = 4900

3. 3 ⋅ 5 ⋅ 8 ⋅ 3: = 3 * 5 * 8 * 3 = 120

4. 49 ⋅ 9 + 21 ⋅ 9: = 441 + 189 = 630

5. 316 ⋅ 5 − 216 ⋅ 5: = (316 - 216) * 5 = 100 * 5 = 500

6. 239 ⋅ 47 + 239 ⋅ 53: = 239 * (47 + 53) = 239 * 100 = 23900

So, the answers to the expressions are as follows:

1. 7800
2. 4900
3. 120
4. 630
5. 500
6. 23900