What should you do if a place value is missing a number?
remove the last digits in the number that has the additional place value
add a zero
subtract without it
nothing
add a zero
What is -18.1 - 5
-23.1
what is -189.987 - 30.87
-220.857
If a place value is missing a number, you should add a zero. Including a zero in the place value ensures that all of the digits are represented and the number remains accurate.
If a place value is missing a number, you should add a zero in that place value. This ensures that the value of the missing place is properly accounted for and the number maintains its correct value. By adding a zero, you indicate that there is no value in that specific place. For example, if you have the number 5430 and the tens place is missing a number, you would add a zero in the tens place to get 54030.
Removing the last digits in the number that has the additional place value is not the correct approach as it would change the value of the number. Subtracting without the missing place value is also incorrect as it would result in an incorrect calculation. Leaving the missing place value blank or doing nothing would lead to an incomplete number representation, which may cause confusion when doing further calculations or comparisons involving that number. Therefore, the correct action is to add a zero in the missing place value.