This document provides an instructional lesson on 2-digit subtraction with and without regrouping. It includes examples of subtracting 2-digit numbers step-by-step and encourages students to try subtracting numbers on their own. The document emphasizes understanding place value and using regrouping when the subtrahend is larger than the minuend in the ones place. Students are asked to find the difference between various 2-digit numbers to practice their skills.

3. 2 DIGIT2 DIGIT
SUBTRACTIONSUBTRACTION
(with regrouping)(with regrouping)
CLASS IIICLASS III

4. InIn thisthis lessonlesson youyou willwill
learn to subtractlearn to subtract 2-2-digitdigit
numbers...numbers...
LookLook atat thethe followingfollowing
subtraction:subtraction:

5. 4 54 5
-- 3 73 7
--------------

6. 44 55
-- 33 77
--------------

7. 3 153 15
44 55
-- 33 77
--------------

8. 33 1515
44 55
-- 33 77
--------------
88

9. 33 1515
44 55
-- 33 77
--------------
0 80 8

10. VeryVery goodgood, now, now try totry to
dodo thisthis otherother
subtraction:subtraction:

11. 5 15 1
-- 3 63 6
--------------

12. 55 11
-- 33 66
--------------

13. 4 114 11
55 11
-- 33 66
--------------

14. 44 1111
55 11
-- 33 66
--------------
55

15. 44 1111
55 11
-- 33 66
--------------
1 51 5

16. Now,Now, let’slet’s look atlook at
another example:another example:

17. 6 56 5
-- 2 82 8
--------------

18. 66 55
-- 22 88
--------------

19. 5 155 15
6 56 5
-- 22 88
--------------

20. 55 1515
6 56 5
-- 22 88
--------------
77

21. 55 1515
6 56 5
-- 22 88
--------------
3 73 7

22. NowNow you tryyou try it:it:

23. 11.. 3 03 0 22.. 5 85 8
-- 1 51 5 -- 2 92 9
----- ----------- ------

24. 11.. 33 00 22.. 5 85 8
-- 11 55 -- 2 92 9
----- ----------- ------

25. 22 1010
11.. 33 00 22.. 5 85 8
-- 11 55 -- 2 92 9
----- ----------- ------

26. 22 1010
11.. 33 00 22.. 5 85 8
-- 11 55 -- 2 92 9
----- ----------- ------
55

27. 22 1010
11.. 33 00 22.. 5 85 8
-- 11 55 -- 2 92 9
----- ----------- ------
1 51 5

28. 22 1010
11.. 33 00 22.. 55 88
-- 11 55 -- 22 99
----- ----------- ------
1 51 5

29. 22 10 410 4 1818
11.. 33 00 22.. 55 88
-- 11 55 -- 22 99
----- ----------- ------
1 51 5

30. 2 10 42 10 4 1818
11.. 33 00 22.. 55 88
-- 11 55 -- 22 99
----- ----------- ------
1 5 91 5 9

31. 2 102 10 44 1818
11.. 33 00 22.. 55 88
-- 11 55 -- 22 99
----- ----------- ------
1 5 91 5 9

32. 22 1010 44 1818
11.. 33 00 22.. 55 88
-- 11 55 -- 22 99
----- ----------- ------
1 5 2 91 5 2 9

33. 33.. 4 14 1 44.. 7 57 5
-- 1 31 3 -- 3 83 8
----- ----------- ------

34. 33.. 44 11 44.. 7 57 5
-- 11 33 -- 3 83 8
----- ----------- ------

35. 33 1111
33.. 44 11 44.. 7 57 5
-- 11 33 -- 3 83 8
----- ----------- ------

36. 33 1111
33.. 44 11 44.. 7 57 5
-- 11 33 -- 3 83 8
------ ------------- -------
88

37. 33 1111
33.. 44 11 44.. 7 57 5
-- 11 33 -- 3 83 8
------ ------------- -------
2 82 8

38. 33 1111
33.. 44 11 44.. 77 55
-- 11 33 -- 33 88
------ ------------- -------
2 82 8

39. 33 11 611 6 1515
33.. 44 11 44.. 77 55
-- 11 33 -- 33 88
------ ------------- -------
2 82 8

40. 33 11 611 6 1515
33.. 44 11 44.. 77 55
-- 11 33 -- 33 88
------ ------------- -------
2 8 72 8 7

41. 33 1111 66 1515
33.. 44 11 44.. 77 55
-- 11 33 -- 33 88
------ ------------- -------
2 8 72 8 7

42. 33 1111 66 1515
33.. 44 11 44.. 77 55
-- 11 33 -- 33 88
------ ------------- -------
2 8 3 72 8 3 7

45. Find theFind the differencedifference between 2between 2
numbersnumbers

46. Learning ObjectivesLearning Objectives
Adds and subtracts 2/3 digit numbers without grouping/withAdds and subtracts 2/3 digit numbers without grouping/with
groupinggrouping

47. Lets find theLets find the differencedifference
between 7 and 2between 7 and 2

48. 77
66
11
22
33
44
55
22
11
TheThe differencedifference is 5.is 5.
The red tower hasThe red tower has
5 more5 more blocksblocks

49. TheThe differencedifference between 7between 7
and 2 is 5and 2 is 5
TheThe differencedifference
between 2 and 7 is 5between 2 and 7 is 5

50. What is theWhat is the
differencedifference betweenbetween
8 and 5?8 and 5?
77
66
11
22
33
44
55
88 55
44
33
22
11
TheThe
differencedifference
between 8 and 5 is 3between 8 and 5 is 3
There are 3 more redThere are 3 more red
blocks.blocks.

51. 66
11
22
33
44
55
22
11
What is theWhat is the
differencedifference
between 2 and 6?between 2 and 6?
TheThe
differencedifference
is 4is 4
There are 4 moreThere are 4 more
green blocksgreen blocks

52. 99
66
77
88
44
33
55
11
22
11
What is theWhat is the
differencedifference
between 9 and 1?between 9 and 1?
TheThe differencedifference
between 9 and 1 isbetween 9 and 1 is
88
There are 8 moreThere are 8 more
yellow blocksyellow blocks

53. 1212
99
1010
1111
88
77
66
55
22
33
44
11
55
33
44
22
11
What is theWhat is the
differencedifference
between 5 and 12?between 5 and 12?
TheThe
differencedifference
between 5 and 12 is 7between 5 and 12 is 7
There are 7 moreThere are 7 more
green blocks.green blocks.

54. 1010 99 5588 77 66 11223344
44 33 22 11
What is theWhat is the differencedifference betweenbetween
4 and 10?4 and 10?
TheThe differencedifference is 6is 6
There are 6 more yellow blocksThere are 6 more yellow blocks

55. Now try these…..Now try these…..
66 55 44 33 22 11
22 11
TheThe differencedifference
between 6 and 2 isbetween 6 and 2 is
44
1111 77 5566 44 2233991010 88 11
88 77 44 33 2266 55 11
TheThe
differencedifference
between 8between 8
and 11 isand 11 is
33

56. Can you think of anyCan you think of any
other ways to find theother ways to find the
differencedifference??
Count onCount on
from thefrom the
smallersmaller
numbernumber
Take theTake the
smaller numbersmaller number
away from theaway from the
bigger numberbigger number

58. 58
CLASS -CLASS -

59. ObjectivesObjectives
Adds 2/3 digit numbersAdds 2/3 digit numbers
with regroupingwith regrouping
59

60. Fun with AdditionFun with Addition
AddingAdding
Number SetsNumber Sets
Class-IIIClass-III

61. LEARNING OBJECTIVESLEARNING OBJECTIVES
Able to understand Addition of 1-digitAble to understand Addition of 1-digit
numbersnumbers
Able to understand Addition of 2-digitAble to understand Addition of 2-digit
numbersnumbers

62. 1313 1111 99 1010
AA BB CC DD

63. 33 1717 77 44
AA BB CC DD
++ =?=?

64. 55 2727 1515 33
AA BB CC DD
++ =?=?

65. 66 99 1212 77
AA BB CC DD
++ =?=?

66. 1010 1111 1212 1313
AA BB CC DD

67. 2 + 4 = ?2 + 4 = ?
AA 22
BB 66
CC 44
DD 88

68. 3 + 4 = ?3 + 4 = ?
AA 55
BB 22
CC 77
DD 44

69. 3 + ? = 73 + ? = 7
AA 11
BB 22
CC 33
DD 44

72. WelcoWelco
meme
backback
againagain

73. Addition and SubtractionAddition and Subtraction
Word ProblemsWord Problems

74. Able to solve word prblemsAble to solve word prblems
related to additionrelated to addition
OBJECTIVOBJECTIV
ESES

75. Find the Clue Words!Find the Clue Words!
1.1. Akash has 25 cars in his collection.Akash has 25 cars in his collection.
Tarun has 32 cars in his collection.Tarun has 32 cars in his collection.
How many more cars does TarunHow many more cars does Tarun
have?have?
What are the clue words?What are the clue words?
aa.. Tarun has 32 carsTarun has 32 cars
b. How many moreb. How many more
c. does Tarun havec. does Tarun have

76. Oops!Oops!
Try again!Try again!

77. You’re right!You’re right!
““How many more” are clue words.How many more” are clue words.

78. Now…Now…
What should we do?What should we do?
AddAdd
SubtractSubtract

79. Oops!Oops!
Try again!Try again!

80. Yes!Yes!
We need to subtract.We need to subtract.

81. Look at the problem again.Look at the problem again.
Akash has 25 cars in his collection.Akash has 25 cars in his collection.
Tarun has 32 cars in his collection.Tarun has 32 cars in his collection.
How many more cars does TarunHow many more cars does Tarun
have?have?
To getTo get
backback

82. The answer is…The answer is…
Did you write this number sentence?Did you write this number sentence?
3232
-25-25
77

83. Let’s try another one.Let’s try another one.
2.2. Chaya has 8 dolls in her collection.Chaya has 8 dolls in her collection.
Karina has 7 dolls. How many dollsKarina has 7 dolls. How many dolls
do the girls have altogether?do the girls have altogether?
What are the clue words?What are the clue words?
a. How many dollsa. How many dolls
b. Chaya has 8b. Chaya has 8
c. altogetherc. altogether

84. Oops!Oops!
Try again!Try again!

85. You’re right!You’re right!
The clue word is “altogether.”The clue word is “altogether.”

86. Should we…Should we…
AddAdd
SubtractSubtract

87. Oops!Oops!
Try again!Try again!

88. Yes!Yes!
““Altogether” is a clue word for addition.Altogether” is a clue word for addition.

89. Look at the problem again.Look at the problem again.
Chaya has 8 dolls in her collection.Chaya has 8 dolls in her collection.
Karina has 7 dolls. How many dolls doKarina has 7 dolls. How many dolls do
the girls have altogether?the girls have altogether?

90. Chaya has 8 dolls in her collection.Chaya has 8 dolls in her collection.
Karina has 7 dolls. How many dolls doKarina has 7 dolls. How many dolls do
the girls have altogether?the girls have altogether?

91. The answer is…The answer is…
Did you write this?Did you write this?
8 + 7 = 158 + 7 = 15

92. To go back to the onlineTo go back to the online
writing tablet, do this:writing tablet, do this:
1. Press the Flying Windows button on1. Press the Flying Windows button on
your keyboard twice.your keyboard twice.
2. Then, click on the Internet button (the2. Then, click on the Internet button (the
blueblue ee ).).
3. Remember, to get back here, click on3. Remember, to get back here, click on
the redthe red PowerPointPowerPoint button.button.

93. Try another one.Try another one.
3. Dhoni has 76 baseball cards.3. Dhoni has 76 baseball cards.
Balu has 59 baseball cards.Balu has 59 baseball cards.
How many more cards does DhoniHow many more cards does Dhoni
have?have?
Writing tabletWriting tablet Check answerCheck answer
directionsdirections

94. The answer is…The answer is…
7676
-59-59
1717

95. Are you getting warmed upAre you getting warmed up
yet?yet?
4.4. Jafar has 18 gel pens in herJafar has 18 gel pens in her
collection.collection.
Binny has 25 gel pens.Binny has 25 gel pens.
How many more pens does BinnyHow many more pens does Binny
have?have?
Check answerCheck answer

96. The answer is…The answer is…
2525
-18-18
77

97. Last one!Last one!
5.5. Kavitha has 87 stickers in herKavitha has 87 stickers in her
collection. Jayanth has 96 stickers.collection. Jayanth has 96 stickers.
How many stickers do they have inHow many stickers do they have in
all?all?
CheckCheck
answeranswer

98. The answer is…The answer is…
8787
+96+96
183183

100. You did…You did…
GREAT!GREAT!

101. additionaddition

102. Add a one-digit number to any two-digitAdd a one-digit number to any two-digit
numbernumber..
-Use my addition bonds to 10.Use my addition bonds to 10.
-Know how manyKnow how many moremore I need to add to nearest 10I need to add to nearest 10
-Know how manyKnow how many moremore I need to add.I need to add.
-Use a number line to work out my calculations.Use a number line to work out my calculations.
Learning ObjectivesLearning Objectives

103. 37 + 8 =37 + 8 = ??
3030 3737 4040 4545
+5+5+3+3
37 + 8 =37 + 8 = 37 + 3 + 5 =37 + 3 + 5 = 4545

104. 29 + 7 =29 + 7 = ??
2020 2929 3030 3636
29 + 7 =29 + 7 = 29 + 1 + 6 =29 + 1 + 6 = 3636
++
66
++
11

105. 54 + 8 =54 + 8 = ??
5050 5454 6060 6262
54 + 8 =54 + 8 = 54 + 6 + 2 =54 + 6 + 2 = 6262
++
22
++
66