Fill in the blanks to make the statements true.
If the digit 1 is placed after a 2-digit number whose tens is t and ones digit is u, the new number is …………… .
The number initially was tu or 10t + u, but after adding 1 in its units place, tu gets shifted one unit higher.
This implies, t shifts to 100th place, u shifts to 10th place, 1 is allocated in units place.
The new number is tu1 or 100t + 10u + 1.