Digit Sum & Root( Week 6 Practice) 1. The digit root is the repeated digit sum. For example, the digit root of 87 is 8 + 7 = 15 → 1 + 5 = 6. Number N has a value of 52 and digit root of 7, what is the new digit root when N is added by 1? 2. The digit root is the repeated digit sum. For example, the digit root of 87 is 8 + 7 = 15 → 1 + 5 = 6. What is the largest two-digit number with a digit root of 6? 3. The digit root is the repeated digit sum. For example, the digit root of 87 is 8 + 7 = 15 → 1 + 5 = 6. Number N has a value of 41 and digit root of 5, what is the new digit root when N is added by 8? 4. The digit root is the repeated digit sum. For example, the digit root of 87 is 8 + 7 = 15 → 1 + 5 = 6. What is the digit root of 99? 5. A is a two-digit number with digit sum of 5. When the two digits are exchanged, the new two-digit number is 9 larger than A. What is the number A? |