**taking points away**. It could be as simple as eating 2 (2) apples from a pile of six (6) apples. You would wind up through four (4) apples left over. It might also be as facility as figuring out the variety of organisms that die yearly in a details ecosystem. Terms that tell you subtraction is happening:Take some ameans.Subtract an amount.Lose some.This minus that.Give up some. Setting up the ProblemsThe substantial symbol you will certainly learn in subtraction is the

**minus**sign. It"s a tiny dash (-) that goes between the 2 numbers in the problem. The order of the worths in a subtraction problem is exceptionally, incredibly important. In enhancement, you could relocate the numbers approximately and get the exact same answer. If you move numbers in a subtractivity difficulty, the answer will be wrong. You cannot reorder numbers as soon as you subtract.

**Examples:**3 + 9 = 129 + 3 = 12 (You deserve to reorder in enhancement and also acquire the same sum.)9 - 3 = 63 - 9 = -6 (See how the answer is a negative number? If you put the numbers in the wrong order on a test you will certainly get the wrong answer.)10 - 5 - 3 = 23 - 10 - 5 = -125 - 3 - 10 = -8 (Don"t rearselection the numbers in your subtractivity problems!)The numbers in a subtraction trouble additionally have one-of-a-kind names. You do not must memorize them, simply recognize that they have unique names. The initially value is the

**minuend**. The second worth (the one you are subtracting) is called the

**subtrahend**. The answer in a subtractivity difficulty is called the

**difference**. Actually, you probably have to remember that the answer to a subtractivity trouble is dubbed the difference.

**Example:**Problem: 9 - 3 = 6Minuend: 9Subtrahend: 3Difference: 6 Subtracting Single-DigitsWe"ll start straightforward and have you job-related through single-digit numbers that are much less than 10. Because you are just starting out, you deserve to do these difficulties through your fingers if you get stuck. The idea is straightforward. You start with a details number of objects and you take a couple of ameans. If you start via 4 balls (4) and also take amethod 2 balls (2) just how many are left? 4 - 2 leaves you via two (2) balls left. Here are some examples...1 - 1 = 0 2 - 1 = 12 - 2 = 0 5 - 1 = 45 - 2 = 35 - 3 = 25 - 4 = 15 - 5 = 0 9 - 1 = 89 - 2 = 79 - 3 = 69 - 4 = 59 - 5 = 49 - 6 = 39 - 7 = 29 - 8 = 19 - 9 = 0You will desire to proceed looking at the following couple of pperiods. We have some even more facility difficulties and we will go into the principle of borrowing and regrouping. You need to borrow when you subtract a larger number from a smaller one. That will take place every one of the time when you begin working with two-digit numbers.

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**occupychristmas.org:**Subtracting One to Twenty

**occupychristmas.org:**Numbers and also Counting

**Biology4Kids:**Scientific Method

**Biology4Kids:**Logic

**Chem4Kids:**Elements

Useful Reference Materials

**Wikipedia:**

*https://en.wikipedia.org/wiki/Arithmetic*

**Encyclopædia Britannica:**

*http://www.britannica.com/topic/arithmetic*

**Encyclopedia.com:**

*http://www.encyclopedia.com/topic/arithmetic.aspx*

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