Worksheet on Adding and Subtracting 2-Digit Numbers

Practice the set of questions provided in the worksheet on adding and subtracting 2-digit numbers.

1. Find the sum and subtraction result as the case may be of the following:

 (i) 55 + 35 = 55 + 30 + 5

                 = 55 + 5 + 30

                 = 60 + 30

                 = 90


(ii) 90 – 35 = 90 – 30 – 5

                = 60 – 5

                = 55

(iii) 45 + 25 = 45 + 20 + 5

                = 45 + 5 + 20

                = 50 + 20

                = ______


(iv) 30 – 15 = 30 – 10 – 5

                 = 20 – 5

                 = ______


(v) 60 – 35 = 60 – 30 – 5

                = 30 – 5

                = ______


2. Complete the diagram finding the sum and subtraction result:

(i)

Worksheet on Adding and Subtracting 2-Digit Numbers

(ii)

Worksheet on Adding and Subtracting Numbers

(iii)

Adding and Subtracting 2-Digit Numbers


3. Fill in the blanks:

(i) 28 + 28 = …………

(ii) 32 – 32 = …………

(iii) 12 taken away from 27 = …………

(iv) Which is more, 49 – 1 or 39 – 1 …………?

(v) What should be added to 31 to make it 47 …………?

(vi) 41 + 1 = …………

(vii) 47 – 2 = …………

(vii) Which is more, 57 – 2 or 56 – 2 …………?

(ix) 23 taken away from 58 = …………

(x) What should be added to 63 to make it 80 …………?

(xi) Which is less, 25 + 4 or 27 – 4 …………?

(xii) 0 taken away from 34 = …………

(xiv) 22 + 17 = …………

(xv) What should be added to 11 to make it 45 …………?

Answers for the worksheet on adding and subtracting 2-digit numbers are given below to calculate the two digit numbers mentally.


Answers:


1. (iii) 70

(iv)15

(v) 25


2. (i)

Adding and Subtracting Two-Digit Numbers

(ii)

Find the Sum and Subtraction

(iii)

Finding the Sum and Subtraction

3. (i) 56

(ii) 0

(iii) 15

(iv) 49 – 1

(v) 16

(vi) 42

(vii) 45

(vii) 57 – 2

(ix) 35

(x) 17

(xi) 27 – 4

(xii) 34

(xiv) 39

(xv) 34









2nd Grade Math Worksheets

Math Home Work Sheets

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