Multiplication made simple

Multiplication

The third in the kingdom of mathematics is multiplication "getting a number in times of another". Suppose you have three friend and you want to give each one of then two pieces of cookies, you may want to make the calculation to know how many cookies you have to buy. Three friends times two cookies. That means you will have to buy eight cookies for you three friends (I am also your friend, buy 18 cookies because I will take 10 cookies! I love it! ).

When multiplying numbers.

• The two numbers that you are multiplying are called the factors and their is always product.
•  First number is the multiplicand and the second number is the multiplier.
• Multiplication is represented with a (×) or dot in some advance math.
• Putting number in parentheses also means multiplication "2(3) means 2 x 3", but if addition or subtraction or division, is place before the parentheses it not multiplication "2 + (3) means 2 + 3".

You don`t have to memorize the multiplication table, you just have to understand it.

You may be wondering while I have removed the 0, 1, and 2, I always remember what my teacher told me.

• Any number multiply by 0 is always 0 (try 999,999)
• Any number multiply by 1 is that number itself (try 123,445).
• To get the multiples of two add 2 to the preceding number, read more on that at the article understanding of number sequences.

NOTE: Now what remain is from 3 to 9. You may feel like completing the table, but how! Here is what to do. Let say the 3 row for example, multiply 3 by 3 which it result is 9, if you want to get the remaining number keep adding 3 to get the next as show in the table above. 

How larger numbers are multiply

Learning multiplication table is very important, because it will be useful in multiplying larger number.

To multiply larger number, you have to stack them on top of other (I have explain that while explaining addition and subtraction).

Examples:

1. Suppose you want to multiply 23 * 4 (two-digit number against one-digit number), don`t forget to put a line underneath after the stacking, as show below.

       2. Also let multiply 63 times(*) 7, after stacking, multiply 7 times 3 which is 21, write down the 1 at the units digit after the underneath line, put the 2 above the 6, multiply 7 by 6 it result 42, because 6 and 7 are the last number to multiply you don`t have to keep any number. Add the 42 with the 2 you write at the top of the 6, 42 + 2 = 44, now write the 44 under at the tens and the hundreds (4 at the tens, 4 ate the hundreds) see the below image.

To multiply a two-digit number by two-digit number, first stack the number on top of each other.

  3. multiply 38 by 27.

Note: when multiply 2 with 8 I start writing down the product at the bottom of the second number below the top number (the tens digit number). And later add the top number with the bottom number.