Question

?5?*7=31?9 Дам 10 баллов

Answer 1

Ответ:

Пошаговое объяснение:

457 * 7 = 3199

Answer 2

To solve the given equation, we need to find the missing digits represented by question marks. Let's break down the equation step by step:

?5? * 7 = 31?9

To begin, let's determine the digit in the tens place of the first number (?5?) multiplied by 7. The product should be in the thousands place (31?9). The only way to get a product in the thousands place when multiplying by 7 is if the tens digit of the first number is 6.

65 * 7 = 455

Now, we have:

65 * 7 = 31?9

To find the missing digit in the ones place, we can calculate the product of 65 and 7, and then find the digit that makes the product end with 9.

65 * 7 = 455

The only number that can make the product end with 9 is 1.

So, the complete equation is:

65 * 7 = 3199

Therefore, the solution to the equation is 65 * 7 = 3199. You get 10 points for solving the equation correctly! Well done!