 Hi and welcome to the session. Today we will learn about addition of numbers with decimals. Suppose we want to add 2 numbers 123.843 and 34.56. Now addition of decimals can be done by adding 1000s, 2000s, 100s, 200s, 10s, 210s, 1s, 2 1s and so on. So let us write first number that is 123.843. Now we will write the second number here 6 is at 100 space so we will write 6 below 4 which is at 100th space, 5 below 8 that is 10th space, 4 below 3 1s place, 3 below 2 that is 10th place. Now let's add them. Here we don't have any digit so we will take 0 here also we will take 0. Now we will add these 2 numbers just like whole numbers so we get 3, 0, 4, 8, 5, 1 and the decimal will be over here just below the 2 decimals. So the addition of these 2 numbers is 158.403. Now let's move on to our next topic subtraction of decimals. Suppose we want to subtract 23.53 from 54.69 then subtraction of decimals can be done by subtracting 100s from 100s, 10s from 10s, 1s from 1s and so on. So first of all let us write this number that is 54.69. Now let us write the number which we want to subtract from 54.69. Here 3 is at 100th space so we will write 3 below 9 then 5 below 6 at 10th space. Decimal will come just below decimal then 3 below 4 that is at 1s space. Now 2 below 5 that is at 10th space. Now let's subtract this number we will subtract these 2 numbers just like whole numbers so we get 6, 1, 1, 3 and the decimal will come between 1s and 10th space over here just below the other 2 decimal points. So 54.69 minus 23.53 is equal to 31.16. Let's take one example. Here Simah had rupees 10.50 and she spent rupees 8.50. How much money is left with her? Here total money that Simah had is rupees 10.50. Now money spent by her is rupees 8.50 and we need to find out money left with her. So for that we will subtract rupees 8.50 from rupees 10.50 so here we get rupees that means money left with Simah is rupees 2. So with this we finished this session hope you must have understood all the concepts Goodbye, take care and have a nice day.