How do I know whether to round all the numbers first, THEN estimate, or to find my answer THEN round? I was doing a favor for my teacher, and I missed that part. She went pretty fast throught the lesson, so I forgot to ask her. Thank you!
You're supposed to round the numbers first and estimate.
For instance, 58 + 63 rounds to 60 + 60 = 120
hey i don't know the answer i just feel like typin
5-16/3=
Knowing whether to round all the numbers first and then estimate or to find the answer first and then round depends on the specific context and requirements of the problem you're trying to solve. In general, here are a few guidelines that might help you decide:
1. Follow the instructions: If the problem or question specifically states to round the numbers first and then estimate, or vice versa, then you should follow those instructions. It's important to read and understand the problem carefully to ensure you're solving it correctly.
2. Consider the level of precision required: If the problem doesn't provide any specific instructions, you can consider the level of precision required for the answer. If the problem or context suggests that a rough estimate is sufficient, then you might prefer to round the numbers before performing any calculations. This approach can help simplify the numbers and make estimation easier.
3. Maintain accuracy where necessary: On the other hand, if the problem requires a high level of accuracy, or if the final answer needs to be precise, then it might be better to perform all calculations first and then round the final answer. This approach allows you to preserve the accuracy of intermediate calculations and produce a more precise result.
In summary, the decision to round the numbers first and then estimate or find the answer first and then round depends on the specific problem, the level of precision required, and any instructions provided. It's important to analyze the problem, consider the context, and choose the approach that best aligns with the requirements of the situation.