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we can use the number line as a model to help us visualizeadding and subtracting of signed.

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12y ago

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Related Questions

Do you add and subtract like and unlike fractions in the same way?

no, to add and subtract like and unlike fractions the denominator has to be the same,


How do you add numbers with different signs?

You add all the numbers with + signs and subtract all that have minus signs.


How do you add and subtract unlike metric units?

You would have to convert the units to be alike, then you would be able to add and subtract them.


How do you know whether you should add or subtract the value of the two numbers?

By the signs: 2+2(Add) 2-2(Subtract) +=add -=subtract


How do you add and subtract mixed numbers with unlike denominators?

just change the fration with the smallest denominator and add or subtract the way you always do.


How will you add integers with unlike signs?

To add two integers with unlike signs: -- Find the difference between their sizes, ignoring their signs. -- Give the difference the sign of the integer with the larger size.


What is a situation where you would use LCM?

To add and subtract unlike fractions.


When do you use LCM in math?

When you want to add or subtract unlike fractions.


Why do you need to use common denominator?

To get the right answer when you add or subtract unlike fractions.


When you add or subtract fractions with unlike denominators why do you have to find LCM?

Because to add fractions, the denominators must be equal.


How do you add and subtract unlike positive and negative fractions?

-1/2+7/10


How do you add integers with unlike signs?

The examples show that, to find the of two integers with unlike signs first find the absolute value of each integers.