Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to write numbers in standard form [title] Look at the problem. [step] A number written in expanded form will look very similar to an addition problem. Each place value will be written out separately, but all of the place values should be linked together with plus signs.

Ending1: [substeps] Example: write the following number in standard form : 3000 + 500 + 20 + 9 + 0.8 + 0.01 [title] Add the numbers together. [step] Since expanded form looks like an addition problem, the simplest way to convert it to standard form is simply by adding the separate place values together. Ending2: For example, the value of a picture cut couplet bottle is divided by 750 or 650 in a standard form. [substeps] The difference in two numbers is that " x = " instead of " x " followed by an ordinary number, we get the same quantity of spammeter or meter used for a larger bust. Ending3: [substeps] Shorter forms are usually numbered for a number that has been removed by a prefix. On a standard form, the top number is the amount of space in the bottom half, while the bottom number is the number applied by subtraction. Ending4: [substeps] For example, most place values must be written separately in a place value range, " o " is " x ", and " y " has a plus sign. This indicates that a class is being formed.

Answer format: ending1/ending2/ending3/ending4