Q: What is the unit digit in the sum of first 99 whole numbers?

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18 numbers are there

To the right of the digit in the unit's column.

Ten.

The unit's digit is 0. That is true for the product of the first n primes provided n>2.The unit's digit is 0. That is true for the product of the first n primes provided n>2.The unit's digit is 0. That is true for the product of the first n primes provided n>2.The unit's digit is 0. That is true for the product of the first n primes provided n>2.

It is 1.

As 3844 ends in 4, its square root (if a whole number) will end in 2 or 8. √3844 = 62 so the unit digit is 2.

21, 51, 81, 91.

113.04 rounded to the nearest unit is 113. Take the last digit of the WHOLE number, in this case, the 3.

It is the first whole number divided by the denominator of the unit fraction. This could be a whole number or a fraction.

the unit digit is the last digit from left or ones digit

128 Look at the first digit to the right of the decimal point. It is 4. Since it is less than 5, round down to the nearest whole number.

the unit digit is 4

It is the unit's digit of the product of the unit's digits. For example, the units digit of 123456 * 4689 is simply the units digit of 6*9 = 54, which is 4.

2

Unit fractions are those fractions where the numerator is 1. Thus they are different to whole numbers in that when whole numbers are written as a fraction the 1 is in the denominator whereas in a unit fraction the 1 is written in the numerator.

The unit's digit of x is not 0.

Any digit in the tens or higher place has no influence on the answer. So it is the unit digit of 4*9*3*6 = unit digit of 6*3*6 = unit digit of 8*6 = 8

Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to, in this case, the tenths place. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out. If your target digit is 9, it will become a zero and increase the digit to the left of it by one.

Here's an example. In the number 382, the number 2 is the "unit's digit" (in the "unit's place"), 8 is the "ten's digit" (in the "ten's place"), and 3 is the "hundred's digit."

One can easily find the units digit by looking for a pattern. For numbers with large powers, they will have a pattern that keeps repeating like a cycle. Depending on the multiple of the power, the pattern can be compared to find the units digit.

To round a number to a particular digit, look at the digit immediately to the right of your target, in this case, the tenths place. If that digit is 4 or lower, zero it and everything to the right of it out. If that digit is 5 or higher, increase the target digit by one and zero everything to the right of it out. If your target digit is a 9, increasing it will turn it to zero and increase the digit to the left of it by one.

2.

24 of them. So we have a 2 or 6 in the unit position, therefore (2)(4)(3) = 24 even three-digit numbers, can be formed.

The unit digit of the square of 81 will be 1.

It is the line segment between any two consecutive whole numbers.

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