# Ncert Solutions For Class 6 Maths Ex 11.2

## Ncert Solutions For Class 6 Maths Chapter 11 Ex 11.2

Question 1

Make as many expressions with no. as you can from three numbers 2, 6 and 9. Each no. should be used only once. Use only addition, multiplication and subtraction.

We can make many expressions using 2, 6 and 9 as given below.

9+ (6 – 2)

9 + (6 × 2)

(6 – 2) + 9

(6 + 2) × 9

(2 + 9) – 6

(2 × 9) × 6

Question 2

Which of these expressions are formed with numbers only?

1. y + 6
2. (8 × 10) – 6p
3. 9 (15 – 7) + 6 × 4
4. 9n
5. 11
6. 7 – 7m
7. (2 × 40) – (4 × 20) – 25 + q

From above expressions given, it can be observed that option (c) and (e) are formed by using numbers only.

Question 3

Identify the operations and tell how the expressions have been formed.

1. a + 2, a – 2, b + 13, b – 13
2. 7t, t/7, 15t
3. 4x + 13, 4x – 13
4. 8c, -8c + 2, -8m – 2

Subtraction: 2 is subtracted from a

Subtraction: 13 is subtracted from b

2. Multiplication: t is multiplied with 7

Division: t is divided by 7

Multiplication: t is multiplied with 15

3.Multiplication and addition: 4 is multiplied with x and result is added to 13.

Multiplication and subtraction: 4 is multiplied with x and 13 is subtracted from the result.

4. Multiplication: 8 is multiplied with c

Multiplication and addition: -8 is multiplied by c and add 2 to the result.

Multiplication and subtraction: c is multiplied with -8 and 2 is subtracted from the result.

Question 4

Give expressions for the below:

2. 3 subtracted from m
3. m multiplied by 8
4. n divided by 8
5. 9 subtracted from –n
6. –m multiplied by 6
7. –n divided by 6
8. n multiplied by -9

1. m + 3
2. m – 3
3. 8m
4. n/8
5. –n – 9
6. -6m
7. –n/6
8. -9n

Question 5

Give expressions for the following cases

2. 15 subtracted from 3p
3. 7 times x to which 6 is added
4. 7 times x from which 6 is subtracted
5. z is multiplied by -9
6. z is multiplied by -5 and then 3 is added to the result
7. q is multiplied by 8 and the result is subtracted from 12
8. q is multiplied by -8 and the result is added to 12

1. 3p + 15
2. 3p – 15
3. 7x + 6
4. 7x – 6
5. -9z
6. -5z + 3
7. 12 – 8q
8. -8q + 12

Question 6

(a) Form expressions with s and 5. Use only one operation in the expressions. Every expression should have s in it.

(b) Form expressions with t, 3 and 8. Every expression should have t. Use only two operations. These two operations should be different.

(a) s + 5

s – 5

5s

$$\frac{s}{5}$$ $$\frac{5}{s}$$

5 – s

(b) 3t + 8

3t – 8

8t + 3

8t – 3 etc..