VISHAL BHARTI PUBLIC SCHOOL SUBJECT-MATHEMATICS CLASS-VI ASSIGNMENT-4 REVISION (SEPTEMBER)

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1 I) Chapter - Knowing Our Numbers VISHAL BHARTI PUBLIC SCHOOL SUBJECT-MATHEMATICS CLASS-VI ASSIGNMENT-4 REVISION (SEPTEMBER) Q1 Write the Roman numeral for (a) 384 (b) 999 Q2 Write the number name of according to Indian system of numeration by putting commas at correct places. Q3 Give rough estimate of the following by rounding off to the nearest hundreds and also a closer estimate by rounding off to nearest tens: 3,25,215 20,180 Q4 Find the difference between the greatest and the least number that can be formed using the digits 8,2,7,4,3 with each digit coming only once. Q5 Give the answer in Roman Numeral by first writing the Hindu Arabic Numeral. (i) CXII + XLV (ii) LXXXIX - XXXVI Q6 Find the difference between the place value and face value of 9 in Q7 Make the greatest and the smallest 5 digit numbers using any five different digits with the given conditions. (a) Digit 4 is always at ones place. (b) Digit 8 is always at tens place. (c) Digit 1 is always at hundreds place. II) Chapter- Playing With Numbers Q8 Write the smallest natural number and the smallest whole number. Are they same? Q9 Using divisibility test check the divisibility of by 6. Q10 Find the common factors of 20 and 28.

2 Q11 Find the L.C.M of 12, 16, 24 and 36. Q12 Find the least number which when divided by 6, 15 and 18 leave remainder 5 in each case. Q13 Find the H.C.F of 70,105 and 175 Q14 In a morning walk, three persons step off together. Their steps measure 80cm, 85 cm and 90 cm respectively. What is the minimum distance each should walk so that all can cover the same distance in complete steps? III) Chapter- Whole numbers Q15 Find the value of the following using distributive property: (a) 328 x x 3 (b) 8054 x 999 Q16 How many whole numbers satisfy the property P x P = P? Q17 Match the columns Column A (a) 7+8 is a whole number (b) 1 (c) 0 (d) 20x(17-14)=20x17-20x14 (e) 15 0 (f) 107x8=8x107 Column B (i) Multiplicative Identity (ii) not defined (iii) Closure property (iv) commutative property (v) Additive Identity (vi) Distributive property Q18 Find the product by suitable rearrangement: 5 x1569 x 20 Q19 Write the predecessor of the smallest whole number. Q20 Add the following by suitable rearrangements: (a) (b) (c) 14, (d)

3 Q21 Fill in the blanks. (a) = (b) = (c) = IV) Chapter- Integers Q22 Compare by putting >, < or = (a) (b) (c) (d) (-7)x4 (- 4)x 7 Q23 Evaluate (a) (-7)+(-9) (-8) (b) (-14) Q24 Represent 4 + (-2) +5 on the number line. Q25 Subtract the sum of (-300) and 250 from the difference of 275 and 190 Q26 Write a pair of integers whose sum is: (a) A positive integer (b) A negative integer (c) 7 (d) -7 Q27 Arrange the following in ascending order. (a) 0, -9, -5, -11 (b) 121, -98, -76, -123 (c) -287, -827, -728, -278 Q28 Arrange the following in descending order. (a) -99, -990, -777, -567 (b) 876, -706, -901, 0 (c) -167, -237, -953, 1 Q29 Write three negative integers just greater than -9.

4 Q30 Write three negative integers just less than-12. V) Chapter- Fractions Q31 Find the equivalent fraction of having: (a) Numerator 9 (b) Denominator 30 Q32 Ravish had 20 pencils, Shikha had 50 pencils and Priya had 80 Pencils. After 4 months, Ravish used up 10 pencils, Shikha used up 25 pencils and Priya used up 40 pencils. What fraction did each use up? Check if each has used up an equal fraction of their pencils? Q33 Shikha reads 20 pages of a book containing 100 pages. Nikhil reads book. Who reads more? of the same Q34 Arrange in ascending order:,,,, Q35 Yuvraj hit 15 sixes in 60 balls he faced. Sachin sent of the balls soaring over the fence of the total 110 balls he faced. (a) Who hit more sixes? (b) Who hit a bigger fraction of sixes against the total balls faced? Q36 What type of fractions can be converted into mixed fraction? Q37 In a class A of 25 students 20 passed in first class; in another class B of 30 students,24 passed in first class. In which class were there more number of students getting first class? VI) Chapter- Basic Geometrical Ideas (2 D) Q38 Give one example from your daily life to illustrate the idea of a (a) Plane surface (b) Curved surface

5 (c) Linear boundary (d) Curved boundary (e) Partly curvilinear and partly linear boundaries Q39 Answer the following: (a) How many lines can you draw passing through two points? (b) How many lines can you draw through a single point? (c) Points A, B and C are collinear. Can you draw another line passing through A, B and C? Q40 Draw a rough sketch of ABC. Name its sides and angles. Q41 Define: (a) Collinear points (b) concurrent lines Q42 In a circle of radius r find each of the following: (a) Length of the diameter (b) The two parts in which the diameter divides the circle (c) The region enclosed between two radii and an arc Q43 Identify the following figures as triangles and quadrilaterals. (a) (b) (c) (d) Q44 Draw a quadrilateral PQRS such that PR is one of its diagonals and PQ and QR are adjacent sides of the quadrilateral. Name all other pairs of adjacent sides and opposite sides of the quadrilateral.

6 VII) Chapter- Understanding Elementary Shapes (2D and 3D) Q45 Draw one triangle of each of the following categories: (a) Acute angled triangle (b) Obtuse angled triangle (c) Right angled triangle (d) Isosceles triangle (e) Equilateral triangle Q46 Write the no. of faces, edges and vertices of given 3-D shapes: (a) Square pyramid (b) Triangular prism (c) Cube (d) cuboid (e) Cylinder (f) Cone (g) Triangular Pyramid Q47 Draw the following types of angles: (a) Acute angle (b) Right angle (c) Obtuse angle (d) Straight angle (e) Reflex angle (f) Complete angle Q48 Draw the following types of quadrilaterals: (a) Parallelogram (b) Rectangle (c) Square (d) Rhombus (e) Trapezium (f) Kite