0
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.
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What are the 4 fundamental operations on whole numbers?
add, subtract, multiply, divide
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
