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Chapter 1: Numbers 3. a. > b. > c. < d. = e. = f. <
Warm Up 4. a. Virat Kohli b. Shikhar Dhawan
1. a. ↔ 172 b. ↔ 321 c. ↔ 204 d. ↔ 160 Exercise 1D
e. ↔ 248 f. ↔ 123 1. a. 402, 2246, 3486 b. 3444, 3979, 4404
d. 2000, 4444, 5400, 9409
c. 3404, 6430, 7568, 7891
2. a. 2 hundreds 4 tens 6 ones b. 5 hundreds 4 tens 8 ones e. 1744, 3406, 4900, 7001 f. 6004, 7002, 7340, 8001
= 200 + 40 + 6 = 500 + 40 + 8 = 548 2. a. 6001, 3240, 444 b. 7200, 5119, 5109, 202

3. a. 324, 325, 326 b. 547, 548, 550, 551 c. 9995, 9701, 9496, 8364 d. 9999, 7400, 7210, 4600
c. 998, 999, 1000, 1001 d. 990, 1000, 1005, 1010 e. 9377, 9364, 9346, 9340 f. 4971, 4961, 4956, 4951
Exercise 1A Exercise 1E
1. a. 1537 - One thousand five hundred thirty-seven 1. a. Smallest Number: 1349 b. Smallest Number: 2789
b. 4218 - Four thousand two hundred eighteen Greatest Number: 9431 Greatest Number: 9872
c. 2422 - Two thousand four hundred twenty-two c. Smallest Number: 1025 d. Smallest Number: 2049
Greatest Number: 9420
Greatest Number: 5210
2. a. 5620 b. 1852 c. 2222 d. 6095 e. 8707 2. a. 6271 b. 9105 c. 3724
3. a. Seven thousand three hundred sixty 3. a. 0579 b. Riya c. Prakash
b. Two thousand eight hundred ninety-three Exercise 1F
c. Three thousand seven hundred sixty 1. a. 585 b. 1972 c. 2013 d. 2977 e. 7363 f. 7999
d. Five thousand two hundred 2. a. 380 b. 1049 c. 2757 d. 5001 e. 4040 f. 8370
e. Four thousand seven hundred six 3. Predecessor Number Successor
4. a. 1610, 1611, 1613, 1614, 1615 b. 2800, 2801, 2802, 2803, 2804 a. 249 250 251
c. 4006, 4007, 4009, 4010, 4011 d. 8889, 8890, 8891, 8893, 8894 b. 5059 5060 5061
2467
5. a. 4521 b. 5052 c. 7950 c. 4100 2468 2469
4101
4102
d.
6. a. b. c. e. 5671 5672 5673

4. a. Yes b. Yes c. Yes d. Yes e. No
5. Odd Numbers: 431, 4033, 6537, 5039
Th H T O Th H T O Th H T O
6. Even Numbers: 4070, 9374, 6576, 6576, 3078, 6080, 8582
7. a. b. c. 7. a. 404, 406, 408 b. 1024, 1026, 1028 c. 2450, 2452, 2454
8. a. 113, 115, 117 b. 1033, 1035, 1037 c. 4445, 4447, 4449
9. 2647, the other numbers are even.
Th H T O Th H T O Th H T O
Exercise 1G
8. a. 1 b. 100 c. 100 d. 10 1. a. 60, 70 b. 60, 70 c. 70, 80 d. 80, 90
9. a. 2. a. 70, 80 b. 20, 30 c. 30, 40 d. 40, 50
e. 50, 60
b. c. 3. a. 70 b. 90 f. 80, 90 d. 30 e. 30 f. 50
c. 80
10. Clara g. 70 h. 40 i. 40 j. 20 k. 90 l. 30
Exercise 1B 4. a. 30 pens b. 70 magazines c. 60 passengers
1. a. Th H T O b. Th H T O Learning Logs
7 9 3 2 Place Value 2 0 5 6 Place Value 1. a. One thousand two hundred thirteen
2 6
30 50 b. Eight thousand nine hundred twenty-five
900 0 c. Six thousand one hundred three
7000 2000 d. Eight thousand three
2. a. b. e. Nine thousand eight hundred thirty-six
f. Eight thousand five hundred fifty-three
g. Eight thousand eight hundred eighty-eight
c. d. 2. a. 8538 b. 9800 c. 2686 d. 5016
3. a. 600 b. 5 c. 70 d. 4000 e. 1000 f. 600
3. Number Place Place value Face value 4. a. > b. > c. < d. > e. < f. <
a. 4539 Tens 30 3 5. a. 5008, 5080, 5088, 5800 b. 7071, 7107, 7170, 7701
b. 5068 Hundreds 0 0 6. a. 6520, 6052, 5620, 5062 b. 9078, 4003, 3564, 986
c. 9324 Thousands 9000 9 7. a. 259, 89 b. 619, 19 c. 8561, 3572
d. 7623 Ones 3 3 8. a. iv b. iii c. i d. ii
4. a. 7000 + 300 + 40 + 9 b. 3000 + 700 + 50 9. a. 7196, 7200 b. 6675, 6680, 6690
c. 2000 + 80 + 9 d. 1000 + 700 c. 9090, 9110, 9130 d. 7310, 7325, 7355
5. a. 2690 b. 5869 c. 5010 d. 9999 10. a. (iii) b. Three (3) 11. a. 7641, 1467 b. 8750, 5078
Exercise 1C 12. a. 80 b. 100 c. 60 d. 40
13. a. 85 (Odd)
b. 96 (Even)
1. a. > b. < c. > d. < e. > f. >
g. = h. < i. < Mental Maths
2. a. b. c. d. 1. d 2. c 3. d 4. c 5. b
Greatest 9387 9843 7949 7890 Hots
Smallest 2087 5478 4349 7089 1844

218 Mathematics 3