That looks like it should be the same as 10 times (the number of times the digit 1 occursin the units place in the numbers from 10 to 100), which would work out to 90 .
10 times.. because.. 100 * 10 = 1000
Into 100 five times into 1000 fifty times
90 of them.
The two-digit factors of 100 and 1000 are all composite.
That looks like it should be the same as 10 times (the number of times the digit 1 occursin the units place in the numbers from 10 to 100), which would work out to 90 .
10 1000/100 = 10
No. 1000 has 4 digits and is the smallest 4-digit number. The smallest 3-digit number is 100.
10 times.. because.. 100 * 10 = 1000
Into 100 five times into 1000 fifty times
90 of them.
The digit 9 appears in the units place 100 times from 1 to 1000 (9, 19, 29,..., 989, 999). It also appears in the tens place 100 times (90, 91, 92,..., 99, 190, 191,..., 199, 290,..., 999). Therefore, the digit 9 appears a total of 200 times from 1 to 1000.
10 times for the one's digit, 1-100 10 times for the ten's digit, 60-70 = 20 times
The two-digit factors of 100 and 1000 are all composite.
Between 1-100- 11 zero's- ie., 10,20,30,40,.... 100... so 11*10=110
100 times greater.
1000 ÷ 10 = 100