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

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Q: How can you estimate sums or differences of decimals?

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I think you round it to the nearest whole number...

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.

To divide decimals the partial sums method requires that numbers are separated into individual portions. The separated numbers are then solved in long division until eliminated.

you have to add

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

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I think you round it to the nearest whole number...

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.

One way is to do front end estimation!

0.7 + 0.9 = 1.6 0.7 - 0.9 = -0.2

decimals must be estimates unless they have multiples of 2 or 5 in the mantissa 1.857142857 + 2.142857142 =3.9999999999 estimate 4.00000000 1 6/7 + 2 1/7 = 4 exact 1.1250000000 + 2.875 = 4.000 +- only 3 significant digits so best estimate possible 1 1/8 + 2 7/8 = 4 exact

To divide decimals the partial sums method requires that numbers are separated into individual portions. The separated numbers are then solved in long division until eliminated.

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

xxx=2x

150 - 4000 - 600 = -4450

well there is no differences for starters.?

you have to add

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