7.8+31.39+6.95
7.8+31.39+6.95
I ask this QU. so it is stupid i have to answer it :(
When the fractional parts, if any, of the two decimal numbers sum to 1.
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
3.14159 and 1.85841 are.
This will happen if the fractional parts of the numbers sum to 1.
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 range of a single number - with or without a decimal - is zero.
I ask this QU. so it is stupid i have to answer it :(
The same way as whole numbers. 0.3865 + 0.2274 could be estimated as 0.40 + 0.20 = 0.6
Sum is an answer to an addition problem.
0.7 0.5
between 20 and 30
1,400
When the fractional parts, if any, of the two decimal numbers sum to 1.
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 largest value is 17.563 The smallest is 2.31 So the range is 17.563 - 2.31 = 15.253
Two decimals with thousandths whose sum is close to 50 are 24.987 and 25.013.