Practice the tricky questions given in the worksheet on mental math subtraction. Try to subtract by using the trick and skills so that the benefits can be enjoyed by both kids and adults. Anyone can learn mental math skills and tricks which can be easily learned by performing mentally on a regular basis.

**1. Subtract the following numbers mentally by using addition method:**

(i) 93 – 67

(ii) 84 – 31

(iii) 52 – 14

(iv) 95 – 48

(v) 98 – 52

(vi) 63 – 26

**2. Subtract the
following numbers mentally by counting backward method:**

(i) 19 – 4

(ii) 18 – 7

(iii) 17 – 6

(iv) 20 – 3

(v) 53 – 5

(vi) 43 – 8

**3. ****Find the difference of the following numbers
using the tricky and skilled method:**

(i) 74 – 47

(ii) 57 – 28

(iii) 57 – 25

(iv) 73 – 27 = 73 – (20 + 7) = (73 – 20) – 7 = 53 – 7 = ?

(v) 68 – 36 = 68 – (?) = ?

(vi) 91 – 62 = 91 – (60 + 2) = ?

(vii) 87 – 54

(viii) 67 – 28 = 67 – 30 + 2 = 37 + 2 = ?

(ix) 164 – 41 = (164 – 1) – 40 = ?

(x) 57 – 29

(xi) 81 – 15

**4.** What are the
two numbers which give 100 if added and also give 100 when subtracted?

Answers for the worksheet on mental math subtraction are given below to check whether you get the exact answers when you use the tricky strategies to subtract mentally.

**Answers:**

**1. **(i) 26

(ii) 53

(iii) 38

(iv) 47

(v) 46

(vi) 37

**2. **(i) 15

(ii) 11

(iii) 11

(iv) 17

(v) 48

(vi) 35

**3. **(i) 27

(ii) 29

(iii) 32

(iv) 46

(v) 32

(vi) 29

(vii) 33

(viii) 39

(ix) 123

(x) 28

(xi) 66

**4.** 0 and 100

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