Adding, subtracting, multiplying and dividing whole numbers.

This time we will do some few basic skills of mathematics. We're gonna do adding, subtracting, multiplying and dividing this time.

Now first example will be the addition. For example,
659+12346+7548+23.
Now this is how you do, do it like this. In a easy way to do it is make it into two groups and use the brackets, then we have this (659+12346) and (7548+23). Secondly we solve each brackets and we get this, 13005 and 7571. then we add each other and we get 20576.

Second example is subtraction. For example, 9681-4753.

This is how you do.                   9681
                                             -  4753                                               

Now we can't do 1-3 so we borrow 1 from 8 and that makes us 11 and 11-3 equals to 8, ten 8 becomes 7 because he let borrow 1 from him. Therefore is 7 so 7-5 equals to 2. Same as 1-3, we can't do 6-7 so we borrow 1 from 9 and tat makes 16 so 16-7 equals to 9. Lastly 9 becomes 8 and 8-4 equals to 4.

 Therefore we got 4928.

Third example is multiplication. I'll show you 2 examples of the multiplication.
 First is 579x6. For easiest way is doing it like this.      327                                                
                                                                               x     7

Now we don't just multiply the whole number by itself we multiply the each whole number above 6, so we do it like this.

I'll show you a step how to do it. every time  when do the calculation like this, you start from right.
1) 7x7=49
2) Write down 9 and carry over 4. ( Put 4 above 2.)
3) 2x7=14, then we add 4, so is 18.
4) Write down 8 and carry over 1. (Put 1 above 3.)
5) 3x7=21, add 1= 22.
6) Write down 22.

In the end you should get 2289.

 second example is 24x9765. Steps of solving is little bit different to the eg1 multiplication.
1) Multiply top line by 4 in usual way to obtain 39060.
2) Write down a zero under zero or just leave the space open.
3) Multiply the top line by 2 in the usual way to obtain 19530.
4) Now simply add the 2 rows to get the answer 234360.

The working out should be like this.

                                                           9765
                                                          x   24
                                                         39060
                                                       19530
                                                     
                                                     =234360

Forth and last example is division.
 For example, 5126/24. I'll show you the steps how to do it.

1) 51/24=2
2) 2x24=48
3) 51-48=3
4) Bring down the 2
5) 32/24=1
6) 1x24=24
7) 32-24=8
8) bring down the 6.
9) 86/24 = 3
10) 3x24 = 72
11) 86-72 = 14
12) can't do 14/24
13) Record the remainder.

 Your working out should be like this.
                                                                    213  r  14
                                                            24   5126                                                      
                                                                   48
                                                                     32
                                                                     24
                                                                       86

                                                                       72
                                                         
                                                                       14