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.
The sum of any one number is the value of that number.
The data wasn't provided to answer this question. The range in math is the highest number minus the lowest number. For example 30,20,10,5 the range would be 30 minus 5 which equals 25.
First, round the highest place value of each number: 400+200+700=1300 Second, round the second highest place value of each number: 390+190+740=1320 The range to estimate the sum is 1300 to 1320. The actual sum is 1321, which higher than the range. However, the actual sum may lie within the obtained range. LEF
The number of decimal places in the product is the SUM of the decimal places in the multiplicands.
I ask this QU. so it is stupid i have to answer it :(
It is 10 + 7 = 17
That depends what the divisor of the division sum is - as to what the part of the number after the decimal point would be.
The sum of a single number is itself. So the answer is 12904 - and no estimate required.
To estimate the sum is to guess what the answer is for an addition problem. For example, if it was 8 + 9 you would see what number 8 is close to (like ten) and do the same with number nine and your estimate would be 20.