Sunday

March 29, 2015

March 29, 2015

Posted by **B.B.** on Wednesday, June 10, 2009 at 12:11pm.

- Math -
**MathMate**, Wednesday, June 10, 2009 at 12:22pmThe answer is correct.

However, you may want to review your reasoning.

What you said*I rounded 978 to 1000 and 66 to 70. 1000*70=70,000 the actual answer was 978*66=64,448 so the estimation was greater than the actual answer.*

seems to tell me that you conclude that you were over-estimating**after**calculating the exact answer, which is not what is intended.

You are expected to determine if you answer is over- or under-estimating**without**calculating the exact answer.

Your teacher may prefer to see a reasoning as follows:

"I rounded 978 to 1000 and 66 to 70. 1000*70=70,000. Since I rounded**up**both multiplicands, the estimation was greater than the actual answer.

Check: 70000>978*66=64,448"

**Answer this Question**

**Related Questions**

Math - Here is the question: Give an estimate for the following expression. Then...

Math - I need some help. Here is the problem: Give an estimate for the following...

Math - I cannot figure this problem out. I have did it several ways and get ...

statistics - Give an estimate for each expression in Exercises, Then state ...

calculus - consider the initial value problem dy/dx=y^2+1, y(0)=0. estimate y(2...

3rd grade math - i need help!! if the estimate is greater than or equal or 1,500...

Math - Here is the question: Find the exact value of the following expression: 6...

Math...Applying the Order of Operations - Can you please show me where i'm going...

Math - if you use $63.00 divided by 9 to estimate $62.59 divided by 9 $7.00 ...

math - magnitude estimate for 9.3*2.8=_ The exact answer for 9.3*2.8 is 26.04, ...