Page 229 - Start Up Mathematics_5

Exercise 15.3 Some NCERT Textbook Questions

1. 2. Chapter 2: Four Operations
muffins cake guava mango 1. ` 66,000 2. ` 2,310 3. b = 2, c = 3
chocolate
144° 72° 80° 100° 4. 39 buses 5. (a) (ii) (b) (iii)
24° wafers 50° 40°
120° apple 90° banana Chapter 3: Factors and Multiples
patties orange
1. Number of
Let’s Evaluate bangles Different groups we can make
1. Students to draw pictograph. 18 1, 2, 3, 6, 9, 18
(a) cricket (b) 7 (c) football 24 1, 2, 3, 4, 6, 8, 12, 24
2. Students to draw bar graphs. 5 1, 5
(a) Maths, 70 marks (b) 50 marks in English
(c) 65 (d) Hindi—75%, Social Studies—68.75% 9 1, 3, 6, 9
3. Students to do on their own. 7 1, 7
Values and Life Skills 2 1, 2
Ravi won 10 1, 2, 5, 10
Scratch Your Brain 1 1, 1
20 1, 2, 4, 5, 10, 20
(c)
13 1, 13
Assessment Sheet 4
21 1, 3, 7, 21
I. Choose the correct answer. 2. 30 feet
1. (b) 2. (c) 3. (d) 4. (a) 5. (d) 6. (c) 3. Manoj can buy tiles of size 1 foot × 1 foot or 3 feet
× 3 feet as these can be laid down without cutting
7. (a) 8. (b)
on the floor.
II. Solve and answer.
1. obtuse-angled triangle 2. two 3. True Chapter 5: Fractions—Multiplication and Division
4. Yes 5. diameter 6. 7.5 cm 7. 28 cm 1. (a) This circle is divided into two equal parts. Out of
8. No 9. parallel lines 10. perpendicular two equal parts one part is coloured blue.
(b) Here the circle is divided into four equal parts. Out
Let’s Review – 2 of four equal parts, two parts are coloured blue.
(c) Here the circle is divided into six equal parts.
I. Choose the correct answer. Out of six equal parts, three parts are coloured

1. (d) 2. (b) 3. (a) 4. (c) 5. (b) 6. (d) 7. (d) blue.
(d) Here the circle is divided into eight equal
II. Solve mentally and answer. parts. Out of eight equal parts, four parts are
1. 20.313 L 2. 47.7°C 3. 11 h 41 min 20 s coloured blue.
4. ` 10 5. 1,800 p 1 2 3 4
, , ,
6. point of intersection 7. 42 cm 8. True 2 4 6 8
1
9. 4 10. 12 2. 32 (i) Two (ii) Two (iii) Four
III. Solve and answer. 3.
Sleeping Playing Studying Other activities
1. 23.096 dag 2. 3 m 55 cm
Sleeping 8 hours
3. Students to do their own.
4. 5.6% 5. 304% 6. 750 Studying 6 hours
7. Students to do on their own. Playing 3 hours
8. 20 sq. units 9. 9 cm He use 7 hours for other activities.
10. Students to do on their own. 1 1
11. 2.5 cm 4. (i) (ii) 16
8
12. Students to do on their own. 5. Yes, Students to do on their own.

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