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Q: Estimating sums and differences
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What does estimating sums mean?

It means to round a number to the nearest whole number, tens, hundreds, etc.


How are these terms alike differences sums quotients and products?

Alike is the same as Differences means subtractions Sums means additions Quotients means divisions Products means multiplications


The thing combines multiplication with sums and differences?

distributive property


How do you estimate decimal sums and differences?

The basic idea is the same as when you estimate sums and differences of larger numbers (which may or may not be integers). You round the numbers to one or two decimal digits, then add them up.


How do you do estimating sums?

When estimating sums, it is best to round to the nearest round number. If the last place on the right is less than 5, then round down. If the last place on the right is 5 or more, then round up. For example, 43+88. You would round the 43 down to 40 and the 88 up to 90. The estimated sum would 130.


How can you estimate sums or differences of decimals?

In the same way as you estimate them for whole numbers.


How do yo round to estimate sums and differences in math?

One way is to do front end estimation!


What is estimate sums and differences for 0.721 plus 0.894?

0.7 + 0.9 = 1.6 0.7 - 0.9 = -0.2


What are the rules for estimating sums by rounding each addend?

Find your number, look Right next door, five or more just add one more, four or less just ignore...


What is an instance when you might want to find an estimate for fraction sums our differences rather than the exact answer?

When you do not require an exact answer but an approximation is sufficient.


What does reasonableness mean in math?

It means to give the reason of something, (numbers,sums,differences, and problems.)


Estimate the following sums or differences 1 4 5 - 3 9 10 - 6 1 7?

150 - 4000 - 600 = -4450