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In 1st grade, we now have learnt the way to add 1-digit and 2-digit numbers. Right here, we’ll study easy addition of 3-digit numbers with out regrouping (with out carrying).
We add 3-digit numbers in the identical means as we add 2-digit numbers.
Allow us to add 423 and 215.
So as to add the above numbers, we take the next steps:
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Step I: Write the given numbers in column kind as proven. Step II: Add those: 3 + 5 = 8 Write 8 beneath ones column. Step III: Add the tens: 2 + 1 = 3 Write 3 beneath tens column. Step IV: Add the lots of: 4 + 2 = 6 Write 6 beneath lots of column. |
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Thus, the sum of 423 and 215 is 638.
Questions and Solutions on Addition of 3-Digit Numbers With out Carrying:
1. Exercise the next additions:
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(i) |
H T O 3 1 2 + 4 8 3 ___________ |
(ii) |
H T O 2 1 5 + 6 2 0 ___________ |
(iii) |
H T O 7 2 3 + 1 5 6 ___________ |
Reply:
1. (i) 795
(ii) 835
(iii) 879
2. Discover the sum:
|
(i) |
H T O 4 0 9 + 3 8 0 ___________ |
(ii) |
H T O 6 1 8 + 2 6 0 ___________ |
(iii) |
H T O 8 0 4 + 1 9 3 ___________ |
|
(iv) |
H T O 5 1 0 + 2 8 7 ___________ |
(v) |
H T O 4 8 8 + 3 0 1 ___________ |
(vi) |
H T O 7 0 7 + 2 7 1 ___________ |
Reply:
2. (i) 789
(ii) 878
(iii) 997
(iv) 797
(v) 789
(vi) 978
3. Prepare in columns and add:
(i) 321 + 521 = _____
(ii) 811 + 184 = _____
(iii) 315 + 423 = _____
(iv) 805 + 173 = _____
(v) 283 + 601 = _____
(vi) 525 + 374 = _____
Reply:
3. (i) 842
(ii) 995
(iii) 738
(iv) 978
(v) 884
(vi) 899
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