Addition With Regrouping
Addition with carrying is called addition with regrouping.Steps involved in addition with carry
• First add the digits in the unit place.
• If the above addition is greater than or equal to 10 then write the unit
place (ones place) digit below and tens place digit carry forward.
• Place the carry forward digit on the top of tens digit.
• Finally add all the three numbers.
• The answer may be two digit or three digit.
Example 1 : Add 58 + 23
Here 58 is a two digit number so write the numbers 5 and 8 according to their place values. So 5 is below tens (T) place and 8 is below ones place (O). The second number is 23 , which is also a two digit number so write it according to its place values.
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T O (1) 5 8 + 2 3 ______ 8 1 |
Example 2: 78 + 22
Write 78 and 22 according to their place value. Then add unit digit
(8 + 2= 10) as this answer is two digit so from that write 0 below the line in unit place column. Write Tens digit (1) below 'T' and above 7. Add all the three numbers ( 1 + 7 + 2 = 10). So the answer is 100.
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T O (1) 7 8 + 2 2 ______ 1 0 0 |
Example 3: 98 + 42
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T O (1) 9 8 + 4 2 ______ 1 4 0 |
For practice,download the following and send me the feedback
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T O 8 4 + 7 6 ______ |
T O 8 8 + 2 8 ______ |
T O 2 4 + 5 9 ______ |
T O 6 2 + 6 9 ______ |
T O 8 4 + 2 6 ______ |
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T O 1 7 + 2 9 ______ |
T O 8 4 + 1 8 ______ |
T O 3 8 + 4 9 ______ |
T O 1 5 + 4 7 ______ |
T O 5 2 + 9 9 ______ |
1st Grade Math
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