mathematics

​NUMBER 99 T0 499

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​Expanding form

​to expand means to grow bigger. take a rubber band and pull it. the rubber band has been stretched.

​COMPARISON OF NUMBERS WITH DIFFERENT DIGITS.

​The number which has more digits is always greater than the number with less digits. All single digit numbers are smaller than 2 digit numbers and all 2 digit numbers are smaller than 3 digit number, and so on.

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​COMPARISON OF NUMBER WITH EQUAL DIGITS

​Forming the greatest and the smallest 3 digit numbers

​let us form the greatest 3 digit number using the digits 2, 3 and 7. Arrange them in descending order: 7, 3 and 2. thus, 732 is the greatest number that can be formed using these digits. Let us form the smallest number using the digits 3, 0 and 4. Arrange them in ascending order: 0, 3 and 4. but we cannot form the smallest 3 digit number if 0 is placed as the first digit from the left, because in that case the number formed will be a 2 digit number. So place a 0 as the second digit. Thus, 304 is the smallest number that can be formed using these three digits.