Tuesday, April 28, 2009
Directions For Strike At Dolphin Mall
Comparison of numbers with decimals Two decimal numbers is greater the has the highest number representing the integer, the tenths, hundredths or thousandths. zeros placed at the end of the decimal does not change the value of number: If we compare two decimal numbers. A number is either greater or less than or equal to another number.
A decimal number is a fractional number. Comparing 0.7 and 0.07 is clearer than compare 7 / 10 to 7 / 100. The fraction 7 / 10 is equivalent to 70/100 which is larger than the naked eye 7 / 100.
Thus begins when comparing decimals with tenths and then hundredths, etc. If a decimal has a higher value on the tickets then this is larger than a decimal to a lower value on the tickets. If the tenths are equal, compare the hundredths, then the thousandths etc.. Until one decimal is larger or no more places to compare. If all decimal place values \u200b\u200bare equal then the decimal numbers are equal.
Operations with decimal numbers
To add two or more decimal numbers are placed on matching column
commas, then added as if they were natural numbers and placed in the coma
result under the column of commas.
To subtract decimal numbers are placed on matching column commas.
If the numbers do not have the same number of decimal places, are filled with zeros
missing figures. Then subtract as numbers
natural and the result is put in the comma in the column of commas.
To multiply a decimal number by the unit followed by zero: 10, 100,
1,000, ... move the decimal to the right as many places as zeros have
the unit.
To multiply two decimals the operation is performed as if they were
natural numbers and product separate as many decimal places decimal
figures are between the two factors. Multiplication with decimals
The product of two numbers with decimals is calculated by multiplying the factors as if they were natural numbers, regardless of the comma separating the product obtained from the right, as many decimal places are all factors.
To multiply two decimal numbers, multiplication is performed both as if they were numbers. Then, put the comma in the result, separating as many digits as decimals are the two factors together.
Multiplication with decimal followed by zeros unit
The product of a decimal number with the unit followed by zero is equal to a number composed of the same figures as the first number and moved so many places to eat right as continue to drive zeros.
If there is sufficient numbers to the right, zeros are appended:
0.54 x 10 = 5.4
1.5 x 100 = 150
0.87 x 1000 = 870
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