Table of Contents
What are the digits on the tens place?
The digits on the tens place must be from 1 to 9. The largest 2-digit number is 99 as the next number is 100 which is a 3-digit number. The smallest two-digit number is 10 because the previous number is 9 which is a one-digit number. Place value is the position of each digit in a number.
How many digits does 10^N have?
We know that 10^N has N+1 digits. And that every number in the range [10^N, 10^ (N+1) ) has N+1 digits. So we can state that a number X has floor (log (X)) + 1 number of digits.
What is the total number of possible 2-digit even numbers?
Of the 10 digits, 5 are even. So in both cases there are 5 choices for the units digit of the 2-digit number. (a) If repetition is allowed, then there are 10-1 = 9 choices for the tens digit. (9 because you can not use zero as the “tens” digit). The total number of possible 2-digit even numbers is 9*5 = 45, if repetition is allowed .
What is an even number?
Any integer that can be divided exactly by 2 is an even number.
What is the meaning of tens and ones?
Tens and Ones: A number system is a method to represent numbers. The position of a digit in a number tells the value of that digit in the given number. For example, 3 in 203 represents 3 ones or 3, but 3 in 239 is 3 tens or 30.
How many tens are there in 20?
In the given number 20, the digit 2 is at tens place. Therefore, there are 2 tens in 20. This can be written as 20 = 2 tens + 0 ones. Can 2 Digit Numbers Start with 0?
What is the difference between at ten’s place and at one’s place?
At one’s place, the digit which is at the extreme right is known to be like one’s, whereas the digit placed at the leftmost is known to be at ten’s. For example, consider a two-digit number say 39. The number 39 in expanded form can be written as 39 = 30 + 9 = 3 × 10 + 9. ⇒ 3 is at ten’s place, and 9 is at the unit’s place.
What is the difference between tens digit and unit digit?
In a number of two digits, unit’s digit is twice the tens digit. If 36 be added to the number, the digits are reversed.
What is digdigit in unit’s place?
Digit in unit’s place is b (given). Digits in ten’s place is 3 more than digit in unit’s place. Two digit number = 10* digit in ten’s place + digit in unit’s place. Answer : The number is 11b +3.
How many digits are in a number?
Every number which has more than 1-digit has different digits described by their place values. In 2-digit numbers, there are only two place values – the units place and the tens place. 2-digit numbers start from 10 and end on 99. In other words, the smallest 2-digit number is 10 and the greatest 2-digit number is 99. What are 2-Digit Numbers?