2-Digit Number Sense( Week 17 Evaluation) 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 93 inclusively? 2. 73 is a two-digit number, and its tens digit is 4 more than its ones digit. What is the next larger two-digit number that has the same relationship? 3. 17 is a two-digit number, and its tens digit is 6 less than its ones digit. What is the next larger two-digit number that has the same relationship? 4. 81 is a two-digit number, and its tens digit is 7 more than its ones digit. What is the next smaller two-digit number that has the same relationship? 5. 28 is a two-digit number, and its tens digit is 6 less than its ones digit. What is the greatest two-digit number that has the same relationship? 6. How many 2-digit numbers are there in which the digits sum up to 4? 7. How many 2-digit numbers are there in which the digits sum up to 9? 8. 12 and 21 are two examples of numbers that have a digit difference of 1. How many two-digit number(s) are there with a digit difference of 4? 9. 26 and 34 are two examples of the numbers that have a digit product of 12. How many two-digit number(s) are there with a digit product of 16? 10. 15 and 61 are two examples of the numbers that have a digit sum greater than 5 (1 + 5 > 5 and 6 + 1 > 5). How many two-digit number(s) are there with a digit sum greater than 15? |