The number is already in decimal form so why would you want to estimate it in decimal form???
0.235 * 0.6891 = 0.1619385 What's to estimate? The total decimal places in the multiplicands is the total in the answer.
87/100
6.30
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.
let x equal the decimal. Set up two equations such that the digits after the decimal point are identical. 100x=87.7777... 10x=8.7777... Subtracting the two equations, we have: 90x=79 79/90
The number is already in decimal form so why would you want to estimate it in decimal form???
0.75 is a good estimate.
0.235 * 0.6891 = 0.1619385 What's to estimate? The total decimal places in the multiplicands is the total in the answer.
The range of a single number - with or without a decimal - is zero.
It depends on your level of numerical skill. You can convert the decimal to an approximate fraction and estimate the sum of the two fractions, or you can convert the fraction to an approximate decimal and estimate the sum of the two decimals or, if you are more able you just estimate their sum directly.
2.4*63
0.8
The answer depends on what the decimal is: the processes for 9999.02 and 0.02 are very different.
YOU CAN estimate it by if your product has more than 5
352.84/10
by estimating the number after the decimal