Question

Делится ли данное число: 442, 1020, 5043,1175, 6286- на 2? на 5? на 10?В каком случае сформулируйте признак, которым вы пользовались .

Answer 1

1) 442:2=221 1020:2=510 5043:2=2521,5 1175:2=587,5 6286:2=3143 2) 442:5=88,4 1020:5=204 5043:5=1008,6 1175:5=235 6286:5=1257,2 3) 442:10=44,2 1020:10=102 5043:10=504,3 1175:10=117,5 6286:10=628,6

Answer 2

Division of Numbers by 2, 5, and 10

To determine if the numbers 442, 1020, 5043, 1175, and 6286 are divisible by 2, 5, and 10, we can perform the division and check if there is a remainder.

1. Divisibility by 2: - A number is divisible by 2 if it is an even number, meaning it ends in 0, 2, 4, 6, or 8. - Let's check each number: - 442: The last digit is 2, so it is divisible by 2. - 1020: The last digit is 0, so it is divisible by 2. - 5043: The last digit is 3, so it is not divisible by 2. - 1175: The last digit is 5, so it is not divisible by 2. - 6286: The last digit is 6, so it is divisible by 2.

2. Divisibility by 5: - A number is divisible by 5 if it ends in 0 or 5. - Let's check each number: - 442: The last digit is 2, so it is not divisible by 5. - 1020: The last digit is 0, so it is divisible by 5. - 5043: The last digit is 3, so it is not divisible by 5. - 1175: The last digit is 5, so it is divisible by 5. - 6286: The last digit is 6, so it is not divisible by 5.

3. Divisibility by 10: - A number is divisible by 10 if it ends in 0. - Let's check each number: - 442: The last digit is 2, so it is not divisible by 10. - 1020: The last digit is 0, so it is divisible by 10. - 5043: The last digit is 3, so it is not divisible by 10. - 1175: The last digit is 5, so it is not divisible by 10. - 6286: The last digit is 6, so it is not divisible by 10.

Based on the above analysis, we can conclude the following:

- The numbers 442 and 1020 are divisible by 2, 5, and 10. - The numbers 5043 and 6286 are not divisible by 2, 5, or 10. - The number 1175 is divisible by 5 but not by 2 or 10.

The criterion used to determine divisibility is based on the last digit of the number. If the last digit is 0, 2, 4, 6, or 8, the number is divisible by 2. If the last digit is 0 or 5, the number is divisible by 5. If the last digit is 0, the number is divisible by 10.