answersLogoWhite

0


Best Answer

Hopefully you know at least how to add (5+4 = 9, etc). If not you should definitely learn to add before you learn to type. Adding whole numbers is the same as adding numbers you learned in kindergarten, with the exception of 0 (but then, a+0 = a for all numbers a).

~eden1023~

Say you wanted to subtract 7 from 13.

0 1 2 3 4 5 6 <- 7 <- 8 <- 9 <- 10 <- 11 <- 12 <- 13

Basically, all you do is count down 7 numbers from 13, which takes you to 6.

Now say you wanted to add 8 to 12.

10 11 12 -> 13 -> 14 -> 15 -> 16 -> 17 -> 18 -> 19 -> 20 21 22

All you is go 8 numbers up from 12, which leads you to 20.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you add and subtract whole numbers?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Do you need to add whole numbers when subtracting fractions?

add? dont you mean subtract?


How do you subtract mixed numbers with regrouping?

you take away one of the whole number=then you add or subtract your fractions=


How would you add or subtract fractions with like denominators?

The same way you would add or subtract whole numbers, leaving the denominators alone.


What are the 4 fundamental operations on whole numbers?

add, subtract, multiply, divide


How do you add mixed numbers?

Find theLeast Common Denominator (LCD)Find the equivalent fractions.Add or subtract the fractions and add or subtract the whole numbers.Write your answer in lowest terms.


How do you add or subtract whole numbers?

well that is easy to add two whole numbers like 8+10 is just 18 so you find the total of the two numbers. then to subtract you take it away so 9-4=5 then to check add the 2nd number (in this case 4) to what the sum equals and 4+5=9


How is adding and subtracting decimals similar to and different from adding and subtracting whole numbers?

You write down the numbers you want to add and subtract, making sure the decimal points are aligned. Then, you add (or subtract) EXACTLY as you would add or subtract integers. The decimal point in the solution should be aligned with the decimal points in the original numbers.


How do your borrow from a whole number when subtracting fractions?

A mixed number has a whole number and a fraction. A fraction is a number that is less than whole and that has a denominator underneath a numerator. To add or subtract mixed numbers, add or subtract the fractions, then add or subtract the whole numbers. If the fraction portion of a mixed number, such as 2 5/6, is more than the fraction portion of the mixed number you're trying to subtract from, such as 3 1/6, you must borrow from the whole number of the mixed number you're trying to subtract from to make its fraction bigger... Please comment on my answers I do not have a Facebook account...


How do you subtract decimal numebrs?

If you can subtract whole numbers you can subtract decimals. Forget about the decimal for a sec and subtract the numbers as if they were whole numbers. 2.5 -1.4 =1.1 hope this helps and if not yahoo usually has good examples.


How do you subtract and add angle measures?

In the same way that you subtract and add numbers. Sometimes, though, if the answer is greater than 360 dgrees, you can subtract 360. This is because the angle measure of a whole turn and a bit is the same as the angle measure of the bit.


How can we determine what to do add subtract multiply or divide on word problem questions on whole numbers?

Word problems have key words, like sum, add, difference, subtract, product, multiply, quotient, divide.


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