Class 2 Addition Tutorial
Terms Used in Addition
There are 3
terms used in addition.
1. ‘+’ is
the sign of addition.
2. The
numbers that are added are called addends.
3. The
result that we get is called sum or total.
Addition
of 2-digit Numbers Without Regrouping
Example: Add 46 and 32.
Solution:
Step 1: Add the ones. 6 ones + 2 ones = 8 ones
Step 2: Add the tens. 4 tens + 3 tens = 7 tens
Hence, 46 +
32 = 78 (7 tens + 8 ones).
Addition of 2-digit Numbers with Regrouping
Example: Add 25 and 37.
Solution:
Step 1: Add the ones. 5 ones + 7 ones = 12 ones
Step 2: As 12 > 9, regroup the ones
column as 12 ones = 1 ten + 2 ones.
Step 3: Carry 1 ten to the tens column and
write 2 in the ones column as shown below.
Step 4: Add the tens. 2 + 3 + 1 (carry over) = 6 tens
Thus, 25 + 37 = 62.
Addition of Three 2-digit Numbers with Regrouping
Example: Add 27, 51 and 16.
Solution:
Step 1: Add the ones. 7 + 1 + 6 = 14 ones = 1 ten + 4 ones
Step 2: Carry 1 ten to the tens column, and
write 4 in the ones column.
Step 3: Add the tens. 2 + 5 + 1 + 1 (carry over) = 9 tens
Addition Facts
Order Property of Addition
The sum does
not change even if the order of the addends is changed.
Thus, 3 + 2
= 2 + 3.
Zero Property of Addition
If any
number is added to zero or zero is added to any number, the sum is the number
itself.
Adding a 3-digit Number and a 2-digit Number Without Regrouping
Example: Add 341 and 56.
Solution:
Step 1: Add the ones. 1 one + 6 ones = 7 ones
Step 2: Add the tens.
Step 3: Add the hundreds. 3 hundreds + 0 hundreds = 3 hundreds
Thus, 341 +
56 = 397.
Adding a 3-digit Number and a 2-digit Number with Regrouping
Example: Add 639 and 53.
Solution:
Step 1: Add the ones. 9 + 3 = 12 ones = 1 ten + 2 ones
Write 2 in
the ones column and carry over 1 ten to the tens column.
Step 2: Add the tens. 3 + 5 + 1 (carry over) = 9 tens
Step 3: Add the hundreds. 6 + 0 = 6 hundreds
Thus, 639 +
53 = 692
Adding 3-digit Number with a 3-digit Number Without Regrouping
Example
1: Add 165 and 224.
Solution:
Step 1: Add the ones. 5 + 4 = 9 ones
Step 2: Add the tens. 6 + 2 = 8 tens
Step 3: Add the hundreds. 1 + 2 = 3 hundreds
Thus, 165 +
224 = 389
Adding 3-digit Number with a 3-digit Number with Regrouping
Example
1: Add 337 and 294.
Solution:
Step 1: Add the ones. 7 ones + 4 ones = 11
ones
Step 2: Regroup the ones. 11 ones = 1 ten 1
one
Write 1 one
in ones column and 1 ten in tens column.
Step 3: Add the tens. 1 ten + 3 tens + 9
tens = 13 tens
Step 4: Regroup the tens. 13 tens = 1 hundred
3 tens
Write 3 tens
in tens column and 1 hundred in hundreds column.
Step 5: Add the hundreds. 1 hundred + 3
hundreds + 2 hundreds = 6 hundreds
Thus, 337 +
294 = 631
Story Sums on Addition Class 2
Example
1: 276 people
visited an exhibition on Saturday and 458 people visited on Sunday. How many
people visited the exhibition on both the days?
Solution:
2 7 6 Number of visitors on Saturday
+ 4 5 8 Number of visitors on Sunday
------------
7 3 4 Total number of visitors on both the
days.
------------
Example 2: Neha saw 159 birds on one tree and
367 birds on another tree. How many birds did Neha see on both the trees?
Solution:
1 5 9 Number of birds on first tree
+ 3 6 7 Number of birds on second tree
------------
5 2 6 Total number of birds on both the trees.
------------
Class 2
Addition Test
Maths
Quiz for Class 2 Addition
Class 2
Addition Worksheet