2-Digit Number Sense( Week 17 Practice) 1. By flipping a page upside down, some page numbers still show the exact same numbers. Examples of such page numbers are 1, 69, 808,.... How many such numbers are there from 1 to 71 inclusively? 2. 50 is a two-digit number, and its tens digit is 5 more than its ones digit. What is the next larger two-digit number that has the same relationship? 3. 27 is a two-digit number, and its tens digit is 5 less than its ones digit. What is the next larger two-digit number that has the same relationship? 4. 72 is a two-digit number, and its tens digit is 5 more than its ones digit. What is the next smaller two-digit number that has the same relationship? 5. 85 is a two-digit number, and its tens digit is 3 more than its ones digit. What is the greatest two-digit number that has the same relationship? |