21 minus 4
Understand the Problem
The question is asking to perform a simple subtraction operation, where we need to subtract 4 from 21.
Answer
$17$
Answer for screen readers
The answer is $17$.
Steps to Solve
- Identify the numbers involved
We have two numbers: 21 (the minuend) and 4 (the subtrahend). We need to subtract 4 from 21.
- Set up the subtraction equation
The subtraction can be expressed as: $$ 21 - 4 $$
- Perform the subtraction
Now, we need to calculate the difference: $$ 21 - 4 = 17 $$
The answer is $17$.
More Information
The result of subtracting 4 from 21 gives us the difference of 17, which is often used in various practical situations, like calculating changes in quantities or scores.
Tips
- Forgetting to correctly identify which number to subtract from can lead to errors. Ensure the minuend and subtrahend are clearly defined.
- Mistakes in basic arithmetic might occur; double-check your calculations to avoid simple errors.
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