NCERT Solutions for Class 6 Maths Chapter 11 Algebra Ex 11.3 are part of NCERT Solutions for Class 6 Maths. Here we have given NCERT Solutions for Class 6 Maths Chapter 11 Algebra Ex 11.3.

Board |
CBSE |

Textbook |
NCERT |

Class |
Class 6 |

Subject |
Maths |

Chapter |
Chapter 11 |

Chapter Name |
Algebra |

Exercise |
Ex 11.3 |

Number of Questions Solved |
6 |

Category |
NCERT Solutions |

## NCERT Solutions for Class 6 Maths Chapter 11 Algebra Ex 11.3

Ex 11.3 Class 6 Maths Question 1.

Make up as many expressions with numbers (no variables) as you can from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication.

Solution:

Some possible expressions using three numbers 5, 7 and 8 are

**(i)** 5 + (8 – 7)

**(ii)** 5 -(8 – 7)

**(iii)** 5 +(8 + 7)

**(iv)** (5 + 8)+ 7

**(v)** 5 x 8 + 7

**(vi)** 5 x 7 + 8

**(vii)** 5 x 8 – 7

**(viii)** 5 x 7 – 8

**(ix)** 5 x (8 – 7)

**(x)** 5 x (8 + 7)

**(xi)** 8 x (7 – 5)

**(xii)** 8 x (7 + 5) etc.

Ex 11.3 Class 6 Maths Question 2.

Which out of the following are expressions with numbers only?

**(a)** y + 3

**(b)** (7 x 20) – 8z

**(c)** 5(21 – 7) + 7 x 2

**(d)** 5

**(e)** 3x

**(f)** 5 – 5n

**(g)** (7 x 20) (5 x 10) – 45 + p

Solution:

(c) and (d) are expressions with numbers only.

Ex 11.3 Class 6 Maths Question 3.

Identify the operations (addition, subtraction, division, multiplication) in forming the following expressions and tell how the expressions have been formed:

**(a)** z +1, z – 1 y +17, y -17

**(b)** 17y, \(\frac { y }{ 17 } \), 5z

**(c)** 2y +17, 2y -17

**(d)** 7m, -7m + 3, -7m – 3

Solution:

Ex 11.3 Class 6 Maths Question 4.

Give expressions for the following cases:

**(a)** 7 added to p

**(b)** 7 subtracted from p

**(c)** p multiplied by 7

**(d)** p divided by 7

**(e)** 7 subtracted from -m

**(f)** -p multiplied by 5

**(g)** -p divided by 5

**(h)** p multiplied by -5

Solution:

Ex 11.3 Class 6 Maths Question 5.

Give expressions in the following cases:

**(a)** 11 added to 2m

**(b)** 11 subtracted from 2m

**(c)** 5 times y to which 3 is added

**(d)** 5 times y from which 3 is subtracted

**(e)** y is multiplied by -8

**(f)** y is multiplied by -8 and then 5 is added to the result

**(g)** y is multiplied by 5 and the result is subtracted from 16

**(h)** y is multiplied by -5 and the result is added to 16

Solution:

Ex 11.3 Class 6 Maths Question 6.

**(a)** Form expressions using t and 4. Use not more than one number operation. Every expression must have t in it.

**(b)** Form expressions using y, 2 and 7. Every expression must have y in it. Use only two number operations. These should be different.

Solution:

**(a)** Possible expressions using t and 4 are

t + 4, t – 4, 4t and \(\frac { t }{ 4 } \).

**(b)** Possible expressions using y, 2 and 7 (having only two different number operations) are

2y + 7, 2y – 7, 7y + 2, 7y – 2, \(\frac { y }{ 2 } \) + 7, \(\frac { y }{ 2 } \) – 7, \(\frac { y }{ 7 } \)+2 and \(\frac { y }{ 7 } \) – 2.

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