Answer:To find the missing digit in the number 2___________ that rounds to 30 when rounded to the nearest ten, the number must be between 25 and 34. Since the first digit is 2, the number could be 25, 26, 27, 28, or 29. The possible ones digits are therefore 5, 6, 7, 8, or 9. Similarly, for the number 7__________ that rounds to 70 when rounded to the nearest ten, the number must be between 65 and 74. Since the first digit is 7, the possible ones digits are 5, 6, 7, or 8. In summary:- The missing digit in the first number could be any from 5 to 9.- The missing digit in the second number could be any from 5 to 8.Step-by-step explanation: