To find how many times the digit '3' appears between 300 and 400, we look at the numbers from 300 to 399. The hundreds place always has '3' for these numbers, contributing one '3' for each of the 100 numbers (300 to 399). Additionally, the '3' appears in the tens place in the numbers 330 to 339, contributing another 10 occurrences. In total, there are 1 (from the hundreds place) + 10 (from the tens place) = 11 occurrences of the digit '3' between 300 and 400.
To find how many times the digit 2 occurs in the tens place from 100 to 1000, we can analyze the range of numbers. The relevant range for the tens place is from 120 to 229, which includes all numbers where the tens digit is 2. This gives us the numbers 120-129 (10 occurrences), 220-229 (10 occurrences), totaling 20 occurrences of the digit 2 in the tens place.
Ten of them.
70
There are infinitely many such numbers. For example, 123,456,063
Ten of them.
-99
70
There are infinitely many such numbers. For example, 123,456,063
ten
20
two. 70 and 170.
Only one number between 0 and 60 has a two in the ones and tens place, and it's 22. However, if you are looking for all the numbers between 0 and 60 that have a two in EITHER the ones OR tens place, they are 2, 12, 21, 22, 23, 24, 25, 26, 27, 28, 29, 32, 42, and 52.
There are infinitely many such numbers. One is 4568231432.756
38
To determine how many numbers between 200 and 500 have a 7 in the tens place, we need to consider the possibilities for the hundreds and units digits. Since the hundreds digit can be any number from 2 to 4 (inclusive), there are 3 options. The tens digit must be 7, and the units digit can be any number from 0 to 9, giving us 10 options. Therefore, the total number of numbers meeting this criteria is 3 (options for hundreds) x 1 (fixed digit in tens place) x 10 (options for units) = 30.
There is one six in the units place every 10 numbers. So from 1 to 1000 there are 100 6s in the units place. There are ten sixes in the tens place every 100 numbers, so from 1 to 1000 there are 100 6s in the tens place. Finally, there are 100 numbers that have 6 in the hundreds place. Add all these together, and you get 300. Thus there are 300 6s between 1 and 1,000.