All of them. That is, 1,000 of them (including zero).
No. eg 20 ÷ 133 = 0.1503759... which has infinitely many digits
There are 278 5-digit numbers less than 20,000 that are divisible by both four and nine.
40. Excluding numbers starting with 0.
It depends on how many digit you want to round off. When truncating a number, just chop off the last digit and the resulting value is a truncated number. To round of a number, examine the last digit. If it is less than 5, just eliminate it otherwise the last digit is 5 or more, drop the digit and increase the remaining last digit by 1. 2.037 rounds off to 2.04 since the last digit (7) was greater 4. 2.04 rounds to 2.0 (or 2) since the last digit is less than 5.
sedimentary rock
30
28
18 numbers are there
All of them. That is, 1,000 of them (including zero).
-48
No. eg 20 ÷ 133 = 0.1503759... which has infinitely many digits
Ten times
There are 278 5-digit numbers less than 20,000 that are divisible by both four and nine.
40. Excluding numbers starting with 0.
It depends on how many digit you want to round off. When truncating a number, just chop off the last digit and the resulting value is a truncated number. To round of a number, examine the last digit. If it is less than 5, just eliminate it otherwise the last digit is 5 or more, drop the digit and increase the remaining last digit by 1. 2.037 rounds off to 2.04 since the last digit (7) was greater 4. 2.04 rounds to 2.0 (or 2) since the last digit is less than 5.
1-digit: 9 2-digit: 9 3-digit: 9 x 10 = 90 4-digit: 9 x 10 = 90 5-digit: 9 x 10 x 10 = 900 6-digit: 9 x 10 x 10 = 900