What should you do if a place value is missing a number?(1 point)
Responses
Remove the last digit(s) in the number that has the additional place values.
Remove the last digit(s) in the number that has the additional place values.
Add a zero.
Add a zero.
Subtract without it.
Subtract without it.
Nothing.
Add a zero.
What is −18.1−5?(1 point)
Responses
23.1
23.1
−23.1
negative 23.1
13.1
13.1
−13.1
-23.1
What is −189.987−30.87?(1 point)
Responses
159.117
159.117
220.857
220.857
−159.117
negative 159.117
−220.857
-220.857
If a place value is missing a number, you should add a zero.
To answer the question of what to do if a place value is missing a number, we need to first understand the concept of place values. In our number system (base 10), each digit in a number represents a different place value. The rightmost digit represents the ones place, the next digit to the left represents the tens place, then hundreds, thousands, and so on.
If a place value is missing a number, it means that there is no digit in that place value position. So, what should you do in this situation? Here are the possible responses:
1. Remove the last digit(s) in the number that has the additional place values.
- This response suggests removing the extra digits from the number, keeping only the digits necessary for the given place values. For example, if the number is 1234 and the thousands place value is missing a number, the response suggests removing the digit 4, resulting in the number 123.
2. Add a zero.
- This response suggests adding a zero in the place value that is missing a number. For example, if the tens place value is missing a number in the number 403, the response suggests adding a zero in the tens place, resulting in the number 4003.
3. Subtract without it.
- This response suggests performing the operation without considering the missing number or place value. For example, if you're subtracting a number with a missing tens place value from another number, you would ignore the tens place and perform the subtraction as usual.
4. Nothing.
- This response suggests not taking any specific action when encountering a missing number or place value. It implies that the missing number or place value is inconsequential and can be ignored.
The appropriate response depends on the context and the specific problem you are working on. In some cases, you may need to remove or add digits, while in other cases, you may need to perform calculations without considering the missing number or place value.