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A) If a number has two digits, then the sum of its digits is less than the value of the original two-digit number.
The only prime number less than 3 is 2.
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111111 Any 6 digit number less than that would require a 0, which is an even number.
A) If a number has two digits, then the sum of its digits is less than the value of the original two-digit number.
No, a 4-digit number is not always less than a 5-digit number. The value of a number is determined by the digits it contains, not the number of digits. For example, the 4-digit number 9999 is greater than the 5-digit number 1000. It is important to consider the actual numerical value when comparing numbers, not just the number of digits.
91 since the ones digit is 8 less than 9 and the two digits, 9+1 = 10, a two-digit number.
The only prime number less than 3 is 2.
The only prime number less than 3 is 2.
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102345 is the smallest [positive] 6-digit number with no repeats.
To round any number, look at the digit to the right of the place you are rounding to. If the digit is 5 or more, change the digit in the place you are rounding to to the next higher digit. If the digit to the right of the place you are rounding to is less than 5, leave the digit in the place you are rounding to as it is. Change all digits to the right of the place you rounded to to zeros. For example, 15.15 rounded to tenths is 15.20, or simply 15.2. 15.14 rounded to tenths is 15.10, or simply 15.1.
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Assuming a 3-digit number is meant to mean a positive whole number with 3 digits, then no.