0
If 27 is added to a twi digit number the result is a number with the same digits but in reverse order The sum of the digits is 11 What is the original number?
38
What else can I help you with?
The sum of any two-digit number and the number formed by reversing the digits is always divisible by what?
The sum of any two-digit number and the number formed by reversing the digits is always divisible by 11. This is because when you add a two-digit number to its reverse, the result will always be a multiple of 11. This is because the difference between the original number and its reverse is always a multiple of 9, and when you add two multiples of 9, the sum will always be a multiple of 11.
What is the reverse of divide 4?
The reverse operation of dividing by 4 is multiplying by 4. If you have a number that has been divided by 4, you can recover the original number by multiplying the result by 4. For example, if you divide 20 by 4 to get 5, you can reverse it by multiplying 5 by 4 to return to 20.
The sum of the digits in a two digit number is 10 if the digits are reversed the new number will be 54 more than the orginal number what is the orginal number?
Possibility of two digit no whose sum is 10 19,28,37,46,55,64,73,82,91 Add 54 to each no mentioned above result is 73,82,91,100,109,118,127,136,145 See after first comma 28 and 82 If you reverse 28 . 82 will come which is 54 more than 28. So 28 is that original number
What is the reverse of add 9?
The reverse of adding 9 is subtracting 9. When you add 9 to a number, you increase its value by 9, and to return to the original number, you must subtract 9 from the result. Thus, the operation that undoes adding 9 is subtraction.
How can you tell that 189 is divisible by 3 without doing the division?
Add up the digits in a number, and if that sum is a multiple of 3, then the original number is also a multiple of 3. So 1 + 8 + 9 = 18, which if you're still not sure then 1+8=9, which is a multiple of 3. You can repetitively sum the digits until you have a result of a single digit number. If the single digit result is 3,6 or 9, then the original number is a multiple of 3. Also, if the single digit number is 9, then the number is also a multiple of 9. However, if the result is 6, then it is not necessarily a multiple of six.
What 5 digit number when multiplied by 4 yields the number the same five digits in reverse order?
The number is 21978. 21978 when multiplied by 4 which gives the result 87912 which is in reverse order.
What is the 11 finger trick and how does it work?
The 11 finger trick is a math trick where you can quickly multiply numbers by 11. To use the trick, you separate the digits of the number you want to multiply by 11, add the two digits together, and place the result in between the original digits. This works because 11 is the same as 10 1, so when you add the two digits together and place the result in between, you are essentially multiplying the original number by 10 and then adding the original number to it.
What is the divisiblity rule for 9?
Add the digits together and if the result is divisible by 9, the original number is divisible by 9.
The sum of any two-digit number and the number formed by reversing the digits is always divisible by what?
The sum of any two-digit number and the number formed by reversing the digits is always divisible by 11. This is because when you add a two-digit number to its reverse, the result will always be a multiple of 11. This is because the difference between the original number and its reverse is always a multiple of 9, and when you add two multiples of 9, the sum will always be a multiple of 11.
C plus plus program to reverse the digits of a number?
int RevNum( int num ) { const int base = 10; int result = 0; do { result *= base; result += num % base; } while( num /= base); return( result ); }
When multiplying or dividing two numbers how many significant figures should there be in the answer?
The basic idea is that the final result should not be - or rather, appear to be - more accurate than the original numbers. Therefore, the final result should not have more significant digits than the original numbers you multiply or divide. For example, if one factor has 3 significant digits, and the other 5, round the final result to 3 significant digits.
What is the reverse of divide 4?
The reverse operation of dividing by 4 is multiplying by 4. If you have a number that has been divided by 4, you can recover the original number by multiplying the result by 4. For example, if you divide 20 by 4 to get 5, you can reverse it by multiplying 5 by 4 to return to 20.
Does reversing the order of the digits of a two digit prime number always result in a prime number?
No, reversing the order of the digits of a two-digit prime number does not always result in a prime number.
The sum of the digits in a two digit number is 10 if the digits are reversed the new number will be 54 more than the orginal number what is the orginal number?
Possibility of two digit no whose sum is 10 19,28,37,46,55,64,73,82,91 Add 54 to each no mentioned above result is 73,82,91,100,109,118,127,136,145 See after first comma 28 and 82 If you reverse 28 . 82 will come which is 54 more than 28. So 28 is that original number
A 2 digit number with 2 different digits has a special property When the sum of the digits added to the product of it's digits the result is the number itself What is the smallest number with?
19
What is the reverse of add 9?
The reverse of adding 9 is subtracting 9. When you add 9 to a number, you increase its value by 9, and to return to the original number, you must subtract 9 from the result. Thus, the operation that undoes adding 9 is subtraction.
How do you multiply numbers while considering significant digits?
When multiplying numbers with significant digits, count the total number of significant digits in each number being multiplied. The result should have the same number of significant digits as the number with the fewest significant digits. Round the final answer to that number of significant digits.
