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In the same way as you estimate them for whole numbers.
I think you round it to the nearest whole number...
1.0 and 0.5
0.235 * 0.6891 = 0.1619385 What's to estimate? The total decimal places in the multiplicands is the total in the answer.
An estimate is related to a number, not an arithmetic operation. Having said that, the estimate MUST take account of the context of the operations (+-*/).
In the same way as you estimate them for whole numbers.
to find a low estimate for the product of two decimals, round both factors
by estimating the number after the decimal
Estimate 4883 by 7 and the division problem solved we get 697.57.
Decimals are estimated by rounding off the decimal places to the nearest tenths,hundredths,thousandths,ten thousandths,etc.
I think you round it to the nearest whole number...
1.0 and 0.5
7.8+31.39+6.95
For multiplication or division, the only reasonable estimate is -2.
we have to find compatible numbers
Either or both.
if you are doing something like .5 divided by 1 put a decimal at the top where the answer ends up and change .5 to 5. 1 goes into 5 five time so your answer is .5. if you have something like 1 divided by .5 move the decimal over once on both numbers which is 10 divided by 5 and 5 goes into10 2 times so your answer would be 2.First do the division with out the decimals than estimate the question place the decimal where it makes sense in contrast to your estimation