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There are 54 such numbers.

There are 54 such numbers.

There are 54 such numbers.

There are 54 such numbers.

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There are 54 such numbers.

Q: How many 3 digit number are such that their first digit equals the sum of the last two digit?

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1155

1

Look at the last digit. If a number's last digit is even, the number is even. If the last digit is odd, the number is odd.

Look at the last digit. If the last digit is even, the entire number is even. If the last digit is odd, the entire number is odd.

Look at the last digit. If the last digit is even, the number is even. If the last digit is odd, the number is odd.

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1349

Multiply the three-digit number by the one's digit, or last digit, of the two-digit number. That is your first part. Now multiply by the second-to-last digit, or ten's digit, and multiply the result by 10. That is your second part. Add the two parts and that is your answer.

4284

the last number.

1

The first 8 digit number is 10,000,000, the last is 99,999,999 which means there are 90,000,000 8 digit numbers

The answer is 4559 Sum of the two digit 7+2=9 is the last digit difference of the two digit is last second digit 7-2=5 And the product of these last two digits 9*5=45 forms the first two digit So the answer is 4559

Look at the last digit. If a number's last digit is even, the number is even. If the last digit is odd, the number is odd.

Look at the last digit. If the last digit is even, the entire number is even. If the last digit is odd, the entire number is odd.

Look at the last digit. If the last digit is even, the number is even. If the last digit is odd, the number is odd.