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Addition − Numbers and Operations
Numbers and Operations
Appreciate the role of place value in addition, subtraction and multiplication algorithm
"Ananthan come fast" Ananthan’s mother shouted. "Bus would come earlier".
"I am here mummy, I am ready" he said. The whole family was very busy for ananthan’s sister marriage. They have to buy new clothes for their relatives and family members.
They finished their purchase and returned back home.
Ananthan asked his father ‘how much did you spend for our dresses?
His father said, “Cost of dresses for gents is ₹ 25050, for ladies is ₹ 47025 and for kids is ₹ 7125, and for bride and groom dresses is ₹17500, Now you can tell the total amount.
Ananthan took a paper and pen, he wrote all the amounts one by one according to their place values.
Check whether, the above total amount is correct or not.
Yes, ananthan is correct, see the cost of kids, ₹ 7125, There is a empty place in ten thousand’s place. So Ananthan wrote down the numbers according to the place value. We learnt about place values of the numbers. Now we are going to use the method of adding different values of numbers. Add the following numbers and write down one by one.
137462 + 4005 + 38 + 56734.
Step 1: Start by adding the ones. We have 19 ones in ones places.
Step 2: We must regrouping 19 ones to 1 ten and 9 ones.
Step 3: Now we can put 1 ten with ten and write 9 in the ones place.
Simillarly we have to do the hundred, thousand … and so on.
Arrange all the given numbers according to their place value. We can do all the addition problems in this manner.
When write the numbers, we can avoid mistakes by starting from the right side, that is from the units place.
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