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Brain Sizzlers Practice Time 10B
1. (a) Rectangle has opposite sides equal but square has all sides equal. 1. (a) Lunch box (b) Duck
(b) A cone has one circular base and a cylinder has two circular bases. Practice Time 10C
2. (d) 1. 7 2. 1 3. 4 4. 5
Chapter 9. Multiplication Think and Answer (page 145)
1. (a) less (b) more (c) less
Get Ready!
2. Bucket
1. 15 2. 3 + 3 + 3 + 3 = 12 parrots Practice Time 10E
Practice Time 9A 2. (a) 20 (b) 2 (c) 4
1. 6 + 6 + 6 = 18 water bottles; 3 groups of 6 = 18
2. 7 + 7 + 7 + 7 = 28 apples; 4 groups of 7 = 28 Mental Maths
3. 3 + 3 + 3 + 3 + 3 = 15 balls; 5 groups of 3 = 15 Salma
Practice Time 9B Brain Sizzlers
1. (b) 4 + 4 + 4 + 4 = 16; 4 times 4 = 16 (c) 5 + 5 + 5 = 15; 3 times 5 = 15 12 glasses
Chapter Assessment
2. Repeated Number of times Multiplication Answer
addition repeated fact 1. (b) 2. (b) 3. (b) 4. (a) 6 (b) 5
(a) 2 + 2 + 2 + 2 + 2 5 times 2 5 × 2 10 Chapter 11. Time
(b) 4 + 4 + 4 + 4 + 4 5 times 4 5 × 4 20 Quick Check (page 151)
(c) 3 + 3 + 3 + 3 + 3 + 3 6 times 3 6 × 3 18 The Sun appears in the daytime and the Moon in the nighttime.
(d) 5 + 5 + 5 + 5 + 5 + 5 6 times 5 6 × 5 30 Practice Time 11A
1. M 2. E 3. N 4. A
(e) 6 + 6 + 6 + 6 4 times 6 4 × 6 24
Think and Answer (page 133) Practice Time 11B
1. 16 people 2. 24 people 3. 45 passengers 1. (b) 8 o’clock; 8:00 (c) 10 o’clock; 10:00
Think and Answer (page 136) (d) 2 o’clock; 2:00
Think and Answer (page 154)
Yesterday was Sunday and tomorrow will be Tuesday.
Practice Time 11C
1. (a) Tuesday (b) Friday (c) Sunday (d) Thursday
Practice Time 9C (e) Tuesday
1. 3 2. 2 3. 6 4. 4 5. 10 6. 10 2. (a) 7 (b) First (c) Thursday (d) Third
7. 2 8. 10 9. 2 10. 6 11. 5 12. 5 (e) Thursday (f) Sunday (g) Saturday, Monday
Maths Fun Practice Time 11D
NEW DELHI 1. (a) January (b) July (c) September (d) November
2.
Mental Maths (a) March, April (b) March, June, July
(c) October, November, December
1. 12 wheels 2. 35 days 3. 6 groups 4. 70 pages (d) June, July, September, October
5. 16 dots Think and Answer (page 156)
Chapter Assessment 1. Hot and dry
1. (a) 2. (a) 3. (b) 2. Hot sizzling food and lukewarm milk, soup, tea or coffee
4. (a) 3 + 3 + 3 + 3 = 12 (b) 6 + 6 = 12 3. umbrella
5. Number of Objects in Total number of Chapter Assessment
groups each group objects 1. (c) 2. (b)
(b) 3 9 3 × 9 = 27 4. (b) comes after Friday (c) comes after August
(d) comes between March and May (e) the last month of the year
(c) 2 8 2 × 8 = 16 Mental Maths
Brain Sizzlers 1. January 2. March 3. September 4. December
1. 18 2. 30 3. 40 Brain Sizzlers
4. 2, as 2 + 2 = 2 × 2 = 4
Life Skills 1. Twice; The hour hand completes two rounds on the dial in a day.
2.
There are 24 hours in a day.
20 flowers
Chapter 12. Money
Chapter 10. Measurement
Get Ready!
Get Ready! 1. (a) `60 (b) `15 (c) `20
1. shorter 2. bigger 3. lighter 4. more 2. Ball, Car, Bat
Practice Time 10A Practice Time 12A
2. (a) 5 (b) 10 (c) 8 (d) 6 1. (b) `30 (c) 40 p (d) 60 p (e) `75 (f) 90 p (g) `100
Paintbrush; Toothbrush (h) `25
3. (a) 5 (b) 3 (c) 4 (d) 2; Flute; Glass 2. (a) `10 (b) `25 (c) `50
Think and Answer (page 143) 3. (a) `26 (b) `43
1. No 2. It will depend upon their sizes. 4. (a) `17 (b) `27

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