How is multiplying decimals the same as multiplying whole number?

1. you must move the decimal the amount of digits until the divisor is a whole number. This also means that you move the decimal for the dividend too, adding zeros where it is needed.
2. you must first figure out where the decimal is, so that you will find out what place value each digit is, allowing you to add correctly. For example 10.52 + 0.048 = 10.568
3. you determine it by the amount of digits from the right it is, and moving it to the correct place. For example 10.5 x 20.25 = 212.625 (note that for this example, the decimal moved to the left 3 spaces)

hope this helps

27/28 is greater than 19/20.

Step-by-step explanation:

We can compare both fraction without finding common denominators, common numerators, cross-multiplying, or converting to decimals.  

We can see that the first fraction divide the unit in 20 parts and the second fraction divide the unit in 28 parts.  So, we can conclude that each part is bigger in the first fraction than the second.  

Both fraction are incomplete by 1 portion and if we know that this portion in first fraction is bigger than the second one.

So we can say that Second fraction is greater that first one.

9/20< 27/28

3x4x5x6= a number 2.59375= a number there the same

wright?

Step-by-step explanation:

57

Step-by-step explanation:

D

Step-by-step explanation:

learned it in 6th grade,and teachers confirmed it

Multiplying decimals is the same as multiplying whole numbers except for the placement of the decimal point in the answer. When you multiply decimals, the decimal point is placed in the product so that the number of decimal places in the product is the sum of the decimal places in the factors.

Multiplying decimals is very much like multiplying whole numbers - the major difference is that after you have finished multiplying all the terms (while ignoring the decimal points), you have to add up how many decimal places there are in the factors, and put that many decimal places in the answer.

Step-by-step explanation:

1.multiply by the number in the ones place

2.but a zero below in the ones place to holds its place

3.multiply the number in the tenths place

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right

They are both a form of each other. A form of multiplying and a form of adding.

Step-by-step explanation:

For example, you know that multiplying in itself is technically adding the number the number of times that is given.

Like 3 x 10

Is basically adding 3, ten times.

The same is with decimals.

They are different because multiplying whole numbers: you get a whole number ex: 3 x 7 = 21

Multiplying decimals: you get a whole and part of a whole ex: 12.39 x 2.5 = 30.975

Step-by-step explanation: