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NCERT Textbook- Addition | Mathematics for Class 1: NCERT PDF Download

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51
One more
One little parrot,
singing I love you,
One more joins in,
making them two.
Two little parrots,
resting on a tree,
One more joins in,
making them three.
Three little parrots,
looking for more,
One more joins in,
making them four.
Four little parrots,
wanting to dive,
One more joins in,
making them five.
3 Addition
Refer to page no. 139 to develop understanding of addition.
Teachers Note
2019-2020
Page 2


51
One more
One little parrot,
singing I love you,
One more joins in,
making them two.
Two little parrots,
resting on a tree,
One more joins in,
making them three.
Three little parrots,
looking for more,
One more joins in,
making them four.
Four little parrots,
wanting to dive,
One more joins in,
making them five.
3 Addition
Refer to page no. 139 to develop understanding of addition.
Teachers Note
2019-2020
52
children  and           children children is equal to
Flowers  and           Flowers Flowers =
Birds  and               Birds Birds =
How many altogether ?
cows    and              cow cows is equal to
2
3
1
2
3
5
2019-2020
Page 3


51
One more
One little parrot,
singing I love you,
One more joins in,
making them two.
Two little parrots,
resting on a tree,
One more joins in,
making them three.
Three little parrots,
looking for more,
One more joins in,
making them four.
Four little parrots,
wanting to dive,
One more joins in,
making them five.
3 Addition
Refer to page no. 139 to develop understanding of addition.
Teachers Note
2019-2020
52
children  and           children children is equal to
Flowers  and           Flowers Flowers =
Birds  and               Birds Birds =
How many altogether ?
cows    and              cow cows is equal to
2
3
1
2
3
5
2019-2020
53
How many altogether?
and
and
=
=
8 6 2
and
=
and
=
2019-2020
Page 4


51
One more
One little parrot,
singing I love you,
One more joins in,
making them two.
Two little parrots,
resting on a tree,
One more joins in,
making them three.
Three little parrots,
looking for more,
One more joins in,
making them four.
Four little parrots,
wanting to dive,
One more joins in,
making them five.
3 Addition
Refer to page no. 139 to develop understanding of addition.
Teachers Note
2019-2020
52
children  and           children children is equal to
Flowers  and           Flowers Flowers =
Birds  and               Birds Birds =
How many altogether ?
cows    and              cow cows is equal to
2
3
1
2
3
5
2019-2020
53
How many altogether?
and
and
=
=
8 6 2
and
=
and
=
2019-2020
54
How many altogether?
+                           = 7 4 3
+                           =
+                           =
2019-2020
Page 5


51
One more
One little parrot,
singing I love you,
One more joins in,
making them two.
Two little parrots,
resting on a tree,
One more joins in,
making them three.
Three little parrots,
looking for more,
One more joins in,
making them four.
Four little parrots,
wanting to dive,
One more joins in,
making them five.
3 Addition
Refer to page no. 139 to develop understanding of addition.
Teachers Note
2019-2020
52
children  and           children children is equal to
Flowers  and           Flowers Flowers =
Birds  and               Birds Birds =
How many altogether ?
cows    and              cow cows is equal to
2
3
1
2
3
5
2019-2020
53
How many altogether?
and
and
=
=
8 6 2
and
=
and
=
2019-2020
54
How many altogether?
+                           = 7 4 3
+                           =
+                           =
2019-2020
55
Addition
5  +  1  =
3  +  6  =
7  +  0  =
0  +  9  =
5
+  1
3
+  6
7
+  0
4 +  2  =
4
+  2
0
+  9
_______
_______
_______ _______
2   +   3   =   5
2
+  3
5
___________________
___________________
2019-2020
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FAQs on NCERT Textbook- Addition - Mathematics for Class 1: NCERT

1. What is addition and how is it defined in mathematics?
Ans. Addition is a basic operation in mathematics that combines two or more numbers to give a total. It is defined as the process of finding the sum of two or more numbers.
2. Can you explain the commutative property of addition?
Ans. The commutative property of addition states that changing the order of the numbers being added does not change the sum. For example, 2 + 3 is equal to 3 + 2.
3. What is the identity property of addition?
Ans. The identity property of addition states that adding zero to any number does not change the value of that number. In other words, the sum of any number and zero is equal to the original number itself.
4. How does carrying over work in addition?
Ans. Carrying over is a technique used in addition when the sum of two digits is greater than 9. In such cases, the units digit of the sum is written down, and the tens digit is carried over to the next column.
5. Are there any rules to follow while adding numbers with different signs?
Ans. Yes, there are rules to follow when adding numbers with different signs. If the signs of the numbers being added are the same, we add their absolute values and keep the common sign. If the signs are different, we subtract the smaller absolute value from the larger one and keep the sign of the number with the larger absolute value.
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