Performing simple arithmetic operations like division can seem daunting at first, but with the right approach, it can be accomplished with ease. In this article, we will guide you through a step-by-step process to calculate 400 divided by 5. This operation is essential in various mathematical problems, and mastering it will make you more confident in tackling more complex calculations.
Understanding Division
Before diving into the calculation, let's quickly review what division is. Division is an arithmetic operation that represents the process of sharing a certain quantity into equal parts or groups. In this case, we are dividing 400 into groups of 5.
Step 1: Write the Division Problem
The first step is to write the division problem in the correct format. We start by writing the dividend (the number being divided), which is 400, and then we write the divisor (the number by which we are dividing), which is 5.
400 ÷ 5 =?
Step 2: Determine the Number of Times 5 Fits into 400
Next, we need to determine how many times 5 fits into 400. This can be done by repeatedly subtracting 5 from 400 until we reach 0.
400 - 5 = 395 395 - 5 = 390 390 - 5 = 385 ... 5 - 5 = 0
However, this method can be time-consuming and may lead to errors. A more efficient approach is to use mental math or estimate the number of times 5 fits into 400.
Step 3: Use Mental Math to Estimate the Answer
We can use mental math to estimate the answer by finding the closest multiple of 5 to 400. We know that 5 x 80 = 400, so we can estimate that 400 divided by 5 is approximately 80.
Step 4: Check the Estimate
To ensure that our estimate is accurate, we can multiply the divisor (5) by our estimated answer (80).
5 x 80 = 400
Since our calculation is correct, we can confirm that our estimated answer is accurate.
Step 5: Write the Final Answer
Finally, we can write the final answer to the division problem.
400 ÷ 5 = 80
Conclusion
In this article, we have shown you how to calculate 400 divided by 5 in 5 easy steps. By following these steps, you can master the division operation and become more confident in tackling more complex mathematical problems. Remember to use mental math to estimate the answer and check your work to ensure accuracy.
What is the definition of division?
+Division is an arithmetic operation that represents the process of sharing a certain quantity into equal parts or groups.
How do I estimate the answer to a division problem?
+You can estimate the answer to a division problem by finding the closest multiple of the divisor to the dividend.
Why is it important to check my work when performing division?
+Checking your work when performing division ensures that your answer is accurate and helps you catch any mistakes or errors.