Question

Вычисли и наиболее удобным способом.43+389+57; 362+105+405; 5*20*6; 4*40*5;

Answer 1

Ответ:

1) 43+389+57=489

43+57=100

100+389=489

2) 362+105+405=872

105+405=510

510+362=810+62=872

3)5×20×6 =600

5×6= 30

30×20=600

как 3×2=6

4) 4×40×5 = 800

5×4 = 20

20× 40 = 800

2×4 = 8 и добавляем 2 нуля = 800

Answer 2

Calculations

To compute the given expressions, we can use the following information from the search results:

1. 43 + 389 + 57 - According to Source the result is 489.

2. 362 + 105 + 405 - Source provides the result as 872.

3. 5 * 20 * 6 - This can be calculated as 600.

4. 4 * 40 * 5 - The result of this expression is 800.

So, the computed results are: - 43 + 389 + 57 = 489 - 362 + 105 + 405 = 872 - 5 * 20 * 6 = 600 - 4 * 40 * 5 = 800