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\ 07-Dec-2023 Bharat Arora P-6 Reader’s Sign _______________________ Date __________

Practice Time 4E 2. Divisible by
1. (a) (ii) (b) (iv) (c) (iii) (d) (i) Numbers 2 3 4 5 9 10
2. (a) 3 (b) 10 (c) 50 (d) 20
(e) 50 (f) 200 (g) 100 (h) 140 (a) 62 yes no no no no no
Practice Time 4F (b) 96 yes yes yes no no no
1. 59 2. 102 3. 58 4. 23 (c) 284 yes no yes no no no
5. 101, No 6. 45, 57 7. 167 (d) 251 no no no no no no
8. `28244; `30000 9. Second Month, 840
10. 21, 16 (e) 1024 yes no yes no no no
Mental Maths (f) 6318 yes yes no no yes no
1. (b) 2. (a) 3. (d) 4. (c) 5. (a) Think and Answer
Chapter Assessment 1. 2, 3, 5, 7, 11, 13, 17, 19, and 23.
2.
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27 and 28.
1. (a) (i) (b) (ii) (c) (iv) (d) (ii) Practice Time 5D
2. (a) False (b) False (c) False (d) False
(e) True (f) False 1. Prime number: (c); Composite numbers: (a), (b), (d), (e), (f)
2.
(b) 53 and 59
(c) 83 and 89
(a) 11, 13, 17, 19, 23 and 29
3. Question Rounds to 10 Actual Q and R Estimated Q and R 3. (a) 4 (b) 7 (c) 6
(a) 81 ÷ 18 80 ÷ 20 4, 9 4, 0 4. (a) 10, 5 (b) 7, 3 × 3 (c) 2 × 50, 25 × 2, 5 × 5
(b) 56 ÷ 23 60 ÷ 20 2, 10 3, 0 5. (a) 3, 5, 5 (b) 108, 27, 3, 3 (c) 5, 125, 5, 5, 25
6. (a) 2 × 3 × 3
(b) 2 × 2 × 5
(c) 2 × 2 × 2 × 2 × 2
(c) 312 ÷ 59 310 ÷ 60 5, 17 5, 10 (d) 2 × 3 × 7 (e) 2 × 2 × 3 × 5 (f) 3 × 3 × 3 × 3
(d) 681 ÷ 53 680 ÷ 50 12, 45 13, 30 Brain Sizzlers
(e) 691 ÷ 51 690 ÷ 50 13, 28 13, 40 2412
4. 266, 14 5. 209 6. 522 7. 225 Chapter Assessment
9. 23 10. 220 1. (a) (iii) (b) (ii) (c) (iii) (d) (i)
Life Skills 2. (a) F (b) F (c) F (d) T
(f) T
(e) F
346, 50 3. (a) 30 (b) 10 (c) 60 (d) 20 (e) 33
Brain Sizzlers 4. (a) 26 (b) 99 (c) 99999 (d) 99999
`8700 5. 1, 2, 4, 5, 8, 10, 25, 40, 125 6. 6
7. 4 pairs (13 and 31; 17 and 71; 37 and 73; 79 and 97)
Chapter 5. Factors and Multiples 8. 312, 402, 444 and 612
Life Skills
Let’s Recall
2. 1 × 18 = 2 × 9 = 3 × 6 3. 1 × 20 = 2 × 10 = 4 × 5 1. 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195
2.
6, 12, 18, 24, 30 September
4. 1 × 24 = 2 × 12 = 3 × 8 = 4 × 6 Mental Maths
Think and Answer 1. (a) 2. (c) 3. (c) 4. (a)
Multiplication facts: 1 × 24 = 24; 2 × 12 = 24; 3 × 8 = 24; 4 × 6 = 24
Factors: 1, 2, 3, 4, 6, 8, 12, 24 Chapter 6. Fractions
Think and Answer Let's Recall
1. 90 2. 45 3. 3 4. 8 1. (a)
Practice Time 5A 2. (a) 3 (b) 4 (c) 3 (d) 4
1. (a) True (b) False (c) False (d) False 9 9 9 9
2. (a) 1, 2, 3, 4, 6 and 12. (b) 1, 2, 4, 7, 14 and 28. 3. (a) Nr = 2, Dr = 5 (b) Nr = 3, Dr = 7 (c) Nr = 4, Dr = 9 (d) Nr = 5, Dr = 10
(c) 1, 3, 5, 9, 15 and 45. (d) 1, 2, 4, 7, 8, 14, 28 and 56. 4. (a) 5 apples (b) 14 pencils (c) 15 stamps
(e) 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. Practice Time 6A
3. (a) 1, 2, 3, 4, 6, 8, 12 and 24. 1. (a), (b), (e) 2. (a), (c), (d), (e)
(b) 1, 2, 3, 4, 6, 9, 12, 18 and 36.
(c) 1, 2, 3, 6, 9, 18, 27 and 54. 3. (a) 6 (b) 6 (c) 4 (d) 1
(d) 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. 4. (a) 9 (b) 18 (c) 7 (d) 9
(e) 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48 and 96. 5. (a) 8 (b) 54 (c) 45 (d) 42
4. (a) No (b) Yes (c) Yes (d) No 10 15 20 25 30 6 9 12 15 18
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5. (a) 1, 2, 3 and 6 (b) 1 and 5 (c) 1 and 7 (d) 1, 2, 3 and 6 6. (a) 14 21 28 35 42 (b) 8 12 16 20 24
(e) 1, 2, 3, 5, 6, 10, 15 and 30 (f) 1, 2, 4 and 8 (g) 1 and 2
Practice Time 5B (c) 10 15 20 25 30 (d) 4 6 8 10 12
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1. (a) 5, 10, 15, 20, 25, 30 (b) 7, 14, 21, 28, 35, 42 16 24 32 40 48 14 21 28 35 42
16 24 32 40 48
(c) 11, 22, 33, 44, 55, 66 (d) 13, 26, 39, 52, 65, 78 (e) , , , ,
2. (a) 18, 36, 54, 72, 90 (b) 26, 52, 78, 104, 130 6 9 12 15 18
(c) 30, 60, 90, 120, 150 (d) 50, 100, 150, 200, 250 7. (a) yes (b) no (c) yes (d) no (e) yes
3. (a) 40 (b) 72 Practice Time 6B
(c) 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132 1. (a) no (b) yes (c) no (d) yes (e) yes (f) no
(d) 21, 24, 27, 30, 33, 36, 39, 42, 45, 48 (g) no (h) yes (i) no (j) yes
(e) 54, 63, 72, 81, 90, 99 (f) 72
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4. (a) 20 , 40, 60 and 80 (b) 15 , 30, 45 and 60 2. (a) 14 7 = 2 (b) 10 ÷ 2 = 5 (c) 15 5 = 3
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21 ÷ 7 3 18 2 9 35÷ 5 7
(c) 14 , 28, 42 and 56 (d) 24 , 48, 72 and 96 1 1 1 1 2 3
3. (a) (b) (c) (d) (e) (f)
(e) 20 , 40, 60 and 80 2 2 5 3 3 4
Practice Time 5C (g) 2 (h) 5 (i) 11 (j) 15
1. (a) True (b) False (c) True (d) True 3 7 13 19
Mathematics-4 259