Adding Tens and Ones

We will learn adding tens and ones.

Write in expanded form and find the sum and arrange the numbers in columns. Add the digits in ones and tens column.

1. Add the following digits in ones and tens column. One has been done for you.

(i)

43 = 4 tens + 3 ones

14 = 1 tens + 4 ones

57 = 5 tens + 7 ones

T O

4 3

1 4

5 7

(ii)

26 = __ tens + __ ones

52 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(iii)

51 = __ tens + __ ones

27 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(iv)

83 = __ tens + __ ones

14 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(v)

37 = __ tens + __ ones

52 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(vi)

26 = __ tens + __ ones

61 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(vii)

11 = __ tens + __ ones

77 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(viii)

55 = __ tens + __ ones

32 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(ix)

26 = __ tens + __ ones

62 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

(x)

67 = __ tens + __ ones

21 = __ tens + __ ones

__________________________

__ = __ tens + __ ones

__________________________

T O

__ __

____________

__ __

____________

Addition of a 2-digit and a 1-digit numbers.

1. Find the sum of the following: One has been done for you.

(i)

T O

5 4

+ 3

5 7

(ii)

T O

4 6

+ 2

(iii)

T O

7 8

+ 1

(iv)

T O

3 2

+ 6

(v)

T O

1 7

+ 2

(vi)

T O

4 3

+ 4

(vii)

T O

6 2

+ 6

(viii)

T O

9 1

+ 7

(ix)

T O

7 1

+ 5

(x)

T O

9 5

+ 4

Addition of two 2-digit numbers.

2. Find the sum of the following: One has been done for you.

(i)

T O

1 6

+ 7 3

8 9

(ii)

T O

2 3

+ 4 5

________

(iii)

T O

7 3

+ 2 4

________

(iv)

T O

3 5

+ 4 1

________

(v)

T O

3 7

+ 4 1

________

(vi)

T O

2 0

+ 3 9

________

(vii)

T O

1 6

+ 8 2

________

(viii)

T O

1 4

+ 5 2

________

(ix)

T O

4 5

+ 4 3

________

(x)

T O

1 7

+ 7 2

________

Addition of three 2-digit numbers.

3. Find the sum of the following: One has been done for you.

(i)

T O

2 3

3 0

+ 4 2

9 5

(ii)

T O

3 5

4 0

+ 1 3

________

(iii)

T O

5 2

2 3

+ 2 1

________

(iv)

T O

4 3

1 3

+ 3 2

________

(v)

T O

4 0

2 7

+ 3 2

________

(vi)

T O

4 6

3 2

+ 2 1

________

(vii)

T O

3 1

2 0

+ 1 9

________

(viii)

T O

4 2

1 4

+ 3 2

________

(ix)

T O

2 2

5 6

+ 2 1

________

(x)

T O

1 5

5 1

+ 1 2

________

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