Answer :
To check the student's calculation using reverse calculation, follow these steps:
1. Understand the Original Calculation: The student calculated [tex]\(20000 \div 50 = 400\)[/tex].
2. Perform Reverse Calculation: To verify the result, we can reverse the division by using multiplication. Multiply the result (400) by the divisor (50).
3. Calculate:
[tex]\[
400 \times 50 = 20000
\][/tex]
4. Conclusion: Since the reverse calculation yields 20000, which matches the original number we started with (20000), the student's calculation is verified to be correct.
1. Understand the Original Calculation: The student calculated [tex]\(20000 \div 50 = 400\)[/tex].
2. Perform Reverse Calculation: To verify the result, we can reverse the division by using multiplication. Multiply the result (400) by the divisor (50).
3. Calculate:
[tex]\[
400 \times 50 = 20000
\][/tex]
4. Conclusion: Since the reverse calculation yields 20000, which matches the original number we started with (20000), the student's calculation is verified to be correct.
