CBSE Class 7 Mathematics Worksheet (13)

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CBSE Class 7 Mathematics Worksheet (13)

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DELHI PUBLIC SCHOOL

BOKARO STEEL CITY

ASSIGNMENT FOR THE SESSION 2014-2015

Class: VII Subject : Mathematics Assignment No. 2

1) Find five rational numbers between – 3 and – 2 .

2) Represent 3

4

− on the number line.

3) Find the cost of 3 1

3 metres of cloth at Rs 40 1

2 per metre.

4) By what number should 3-3 be multiplied to obtain 4?

5) Find the value of n when: 52n X 53 = 59

6) Write the following numbers in standard form: a) 684502 b) 0.000987

7) Subtract (2a – 3b + 4c) from the sum of (a + 3b – 4c) & (4a – b + 9c).

8) Multiply - 8

21 x2y3 by - 7

16 xy2 and verify your result for x = 3 and y = 2.

9) Simplify: (3x + 4) (2x – 3) + (5x – 4)(x + 2)

10) Solve: a) t – (2t + 5 ) – 5(1 – 2t) = 2(3 + 4t) – 3(t – 4)

b) 3 1

5

x− – 7

x = 3

11) In an examination, a student requires 40% of the total marks to pass. If Rupa gets 185

marks and fails by 15 marks, find the total marks.

12) Two lines AB and CD intersect at a point O. If ÐAOC = 400, find the measure of each of the

angles ÐAOD , ÐBOD and ÐBOC .

13) Two angles of a triangle are equal and the third angle measures 700. Find the measure of

each of the unknown angles.

14) Two sides of a triangle are 6cm and 8cm long. What can be the length of its third side?

15) A 15m long ladder is placed against a wall in such a way that the foot of the ladder is 9m

away from the wall. Up to what height does the ladder reach the wall?

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