Perform the addition of the numbers 1987, 865, 94, 7
Solution to Example 2 of Addition Problems :
While adding numbers of different number of digits, we have to be careful in putting the numbers one below the other.
All the digits of the units' place should come one below the other.
Similarly, all the digits of the tens' place should come one below the other.
All the digits of the hundreds' place should come one below the other.
And all the digits of the thousands' place should come one below the other.
See the vertical presentation of the process given below.
See how the numbers 1987, 865, 94, 7 are placed one below the other, in the above presentation.
In 1987, 1 is in thousands' place, 9 is in hundreds' place, 8 is in tens' place and 7 is in units' place.
In 865, 8 is in thousands' place, 6 is in tens' place and 5 is in units' place.
In 94, 9 is in tens' place and 4 is in units' place.
In 7, 7 is in units' place.
All the digits of the units place have to come one below the other.
Thus, you find 7, 5, 4 and 7 one below the other in the units' place in the above presentation.
Similarly, you find 8, 6 and 9 one below the other in the tens' place in the above presentation.
You find 9 and 8 in the hundreds' place.
You find only 1 in the thousands' place.
First, the digits in the units' place are added ( 7 + 5 + 4 + 7) to get 23.
In this 23, 3 is placed in the units' place of the answer and 2 is placed under the digits in the tens' place.
Then, add the digits in the tens' place including the small 2 carried over from the units' place, (8 + 6 + 9 + 2 ) to get 25.
In this 25, 5 is placed in the tens' place of the answer and 2 is placed under the digits in the hundreds' place.
Then, add the digits in the hundreds' place including the small 2 carried over from the tens' place,(9 + 8 + 2 ) to get 19.
In this 19, 9 is placed in the hundreds' place of the answer and 1 is placed under the digits in the thousands' place.
Then, add the digits in the thousands' place including the small 1 carried over from the hundreds' place,(1 + 1) to get 2.
This 2 is placed in the thousands' place of the answer.
Thus, the answer is 2953.
Learning/Teaching Math Can Be Fun : Addition Problems
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Exercise on Addition Problems
Do the following Addition Problems :
Perform the additions of the following numbers.
2785, 4987, 1200
7089, 613, 79, 4
2314, 907, 2500
6300, 1102, 1245
1101, 18, 12
6, 7, 1934, 607
1296, 2507, 254
1107, 101, 199
6733, 1055, 1019
8918, 100, 329
For Answers, see at the end of the page.
Progressive Learning of Math : Addition Problems
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