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1. NCERT Solutions - Mathematics, Class 6

CHAPTERS

1. Knowing Our Numbers

2. Whole Numbers

3. Playing With Numbers

4. Basic Geometrical Ideas

5. Understanding Elementary Shapes

6. Integers

7. Fractions

8. Decimals

9. Data Handling

10. Mensuration

11. Algebra

12. Ratio and Proportion

13. Symmetry

EXERCISES

1. Exercise 11.1

2. Exercise 11.2

3. Exercise 11.3

4. Exercise 11.4

5. Exercise 11.5

Q1) Makeup 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.

Q2) 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

Q3) 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

Q4) 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.

(e) -p divided by 5.

(f) p multiplied by -5.

Q5) Give expression 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.

Q6) (a) From expressions using t and 4. Use not more than one number of operations. 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 numbers of operations. These should be different.

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Mathematics

NCERT Solutions - Mathematics, Class 6

Knowing Our Numbers

Whole Numbers

Playing With Numbers

Basic Geometrical Ideas

Understanding Elementary Shapes

Integers

Fractions

Decimals

Data Handling

Mensuration

Algebra

Ratio and Proportion

Symmetry

Exercise 11.1

Exercise 11.2

Exercise 11.3

Exercise 11.4

Exercise 11.5

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