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compatible numbers

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Compatible numbers 2008-11-07
Erika pose la question :
When working with compatible numbers, when do you choose to round up or down? For example: In the problem: 373 divided by 4, one could round 373 to 400 and keep the 4 the same, and the answer would be 100; OR, one could round 373 down to 360 and keep the 4 the same, and the answer would be 90. When given the problem as an assignment, which way dictates how one would round, up or down?
Penny Nom lui répond.
Compatible numbers 2008-10-30
Paul pose la question :
Use compatible numbers to estimate the quotient of 23.52 and 11.04
Penny Nom lui répond.
Compatible numbers 2008-10-02
jeff pose la question :
what exactly are compatible numbers, math problem is:
Estimate the total weight of 2 boxes that weigh 9.4 pounds and 62,6 pounds using rounding and compatible numbers. Which estimate is closer to the actual weight and why?

Harley Weston lui répond.
Compatible numbers 2008-09-25
Katie pose la question :
I am having trouble remembering how to find compatible numbers used to find the estimate in the foloowing problem. Can you please help me solve it and explain it to me? My son is in 5th grade and I need help. Thank you. Here is the problem: 2,752 / 28 estimate: 90
Penny Nom lui répond.
Compatible numbers 2008-04-04
dawn pose la question :
Need help. Estimate the quotient. Tell what compatible numbers you used.

817divided by 4 =

Penny Nom lui répond.
Compatible numbers 2007-11-19
Brendan pose la question :
Let's say you have 291/2 and its between 281/2=14 and 301/2=15. My question is where do the 14 and the 15 come from or in other words how do you get those?
Penny Nom lui répond.
Compatible numbers 2007-10-30
Gary pose la question :
How do I estimate the quotient. and then tell what compatible numbers were used. 703/7
Penny Nom lui répond.
Compatible numbers 2007-09-05
Beth pose la question :
Estimate using compatible numbers:

2 X 3978 =

102/25 =

Stephen la Rocque lui répond.
Compatible numbers 2007-09-01
andrea pose la question :
Estimate using compatible numbers. 249 /64
Harley Weston lui répond.
Compatible numbers 2007-06-15
meryl pose la question :
what is a compatible number? ex.6,321/8
Penny Nom lui répond.
Compatible numbers 2000-01-27
Angie pose la question :
Use compatible numbers to estimate each product and quotient.
23*1/2
1/3*11

Penny Nom lui répond.
 
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