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
To square root decimals without a calculator, first convert the decimal into a fraction. For example, the square root of 0.64 can be expressed as √(64/100), which simplifies to √64/√100 = 8/10. Then, simplify the fraction to find the square root. Alternatively, you can estimate by finding the nearest perfect squares and refining your estimate through averaging or by using the long division method for square roots.
0.235 * 0.6891 = 0.1619385 What's to estimate? The total decimal places in the multiplicands is the total in the answer.
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
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
To square root decimals without a calculator, first convert the decimal into a fraction. For example, the square root of 0.64 can be expressed as √(64/100), which simplifies to √64/√100 = 8/10. Then, simplify the fraction to find the square root. Alternatively, you can estimate by finding the nearest perfect squares and refining your estimate through averaging or by using the long division method for square roots.
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.
18.9/7