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8060 (m) 3;5 (n) 7; 400 (o) 5;834 (p) 6;80 C. (a) cm (b) m (c) m (c) 7. (d) 8. (d)
(d) cm (e) m (f) km (g) cm (h) km (i) m (j) cm D. (a) 100 km (b) HOTS Questions: 1. sphere 2. cone (c) cylinder (d) cube,
5 cm (c) 15 cm (d) 1 m (e) 10 m Mental Maths-2 A. (a) 10 m cuboid (e) sphere (f) cone 2. we get a cuboid of length 6 cm,
23 cm (b) 58 m (c) 89 m 98 cm (d) 68 m 23 cm (e) 82 m 49 cm width 3 cm and thickness 3 cm.
(f) 99 m 15 cm (g) 7 km 861 m (h) 9 km 110 m (i) 7 km 102 m B. 11. Money
(a) 29 m 99 cm (b) 19 m 89 cm (c) 15 m 78 cm (d) 37 m 78 cm
Mental Maths-1 A. (a) 75 p (b) 100 p (c) 0 (d) 228 p (e) 250 p
(e) 18 m 69 cm (f) 22 m 28 cm (g) 1 km 758 m (h) 2 km 809 m (i) (f) 390 p (g) `1.44 (h) ` 90.18 (i) `406.02 (j) `544.39 (k)
1 km 859 m C. (a) 29 m 43 cm (b) 17 m 10 cm (c) 2 m 50 cm (d) `277.75 (l) `177.76 B. (a) `4522.05 (b) `8464.80 (c) `2606.20
1 m 60 cm (e) 1 km 126 m (f) 8 km 100 m (g) 8 km 600 m (d) `156.80 C. (a) `2.02 (b) 41 p (c) `4.05 (d) `9.08 (e) 36 p (f)
Mental Maths-3 A. (a) ml (b) l (c) l (d) ml (e) l (f) ml (g) l (h) ml `241.06 D. (a) `12.03 (b) `32.20 (c) `7.15 (d) `8.09 (e) `15.60
(i) l B. (a) 3000 (b) 5000 (c) 8000 (d) 4 (e) 7 (f) 6 (g) 3450 (h) (f) `6.21 (g) `12.99 (h) `110.1 Mental Maths-2 A. 1. `3223 2.
8070 (i) 3005 (j) 5020 (k) 8015 (l) 4085 (m) 2;346 (n) 5; 678 (o) `325 3. `374 4. `52 5. `1680 B. 1. `20 2. `35 3. `7 4. `128 5.
2; 90 (p) 6; 5 (q) 5; 32 (r) 2; 307 Mental Maths-4 A. (a) 9 l 216 `24 6. 4 toffees 7. `8
ml (b) 8 l 461 ml (c) 4 l 742 ml B. (a) 1 l 687 ml (b) 1 l 769 ml (c) 2 12. Time
l 989 ml C. (a) 8 l 330 ml (b) 8 l 320 ml (c) 1 l 650 ml (d) 3 l 950 ml
Mental Maths-1 A. (a) lunch (b) bucket B. (a) 11 : 15; 15
Mental Maths-5 A. (a) g (b) kg (c) g (d) kg (e) kg (f) g B. (a)
minutes past 11 (quarter past 11) (b) 5 : 20; 20 minutes past 5
3000 (b) 6000 (c) 8000 (d) 3 (e) 7 (f) 9 (g) 3450 (h) 6050 (i) 3005
(c) 7 : 45, 15 minutes to 8 (quarter to 8) (d) 3 : 35; 25 minutes to
(j) 7007 (k) 3075 (l) 4040 (m) 7; 659 (n) 5; 680 (o) 4; 5 (p) 6; 42
4 (e) 9 : 25; 25 minutes past 9 (f) 1 : 55; 5 minutes 2 (g) 4 : 05; 5
(q) 5; 709 (r) 4; 70 C. Do yourself Mental Maths- 6 A. (a) 6 kg
minutes past 4 (h) 10 : 40; 20 minutes to 11 (i) 5 : 5; 5 minutes
203 g (b) 6 kg 422 g (c) 5 kg 561 g (d) 3 kg 969 g (e) 1 kg 769 g (f)
past 5 (j) 3 : 15; 15 minutes past 3 (quarter past 3) (k) 12 : 15; 15
7 kg 586 g B. (a) 6 kg 200 g rice (b) 2 kg 210 g (c) 7 kg 870 g (d) 3
minutes past 12 (quarter past 12) (l) 9 : 15; 15 minutes past 9
kg 480 g
(quarter past 9) (m) 8: 45; Quarter to 9 (n) 2 : 15; 15 minutes
Miscellaneous Questions: 1. (a) 43; 12 (b) 405 (c) 5000 (d) past 2 (o) 10:30;30 minutes past 10 (p) 7 : 30; 30 minutes past 7
8040 (e) 750 (f) 5; 6 (g) 3005 (h) 4; 5 2. (a) 89 m 1 cm (b) 8 m (half past 7) (q) 2 : 30; 30 minute past 2 (half past 2) (r) 9 : 30;
210 cm (c) 8 m 303 cm 3. (a) 3 m 89 cm (b) 3 km 726 m (c) 1 l 30 minutes past 9 (half past 9) C. Do yourself D. (a) 20
767 ml 4. 2 m 40 cm 5. 1 l 650 ml 6. 2 kg 210 g minutes past 5 (b) 15 minutes past 2 (c) 25 minutes past 8 (d) 5
Multiple Choice Questions: 1. (c) 2. (b) 3. (b) 4. (c) 5. (b) 6. minutes past 10 (e) 5 minutes to 4 (f) 20 minutes past 6 (g) 10
(a) 7. (c) 8. (a) 9. (a) minutes to 6 (h) 20 minutes to 5 (i) 15 minutes to 10 (j) 30
HOTS Questions: 1. 5 m = 500 cm; 5 m + 2 cm = 500 cm + 2 minutes past 2 E. (a) 5 : 15 (b) 10 : 35 (c) 2 : 40 (d) 6 : 30 (e) 3 :
cm = 502 2. 1 kg = 1000 g; 3 kg + 5 g = 3000 g + 5 g = 3005 g 3. 55 (f) 6 : 40 (g) 8 : 45 F. 1. (b) 2 o’clock (2:00) (c) 8 o’clock 2. (b)
He should place 5 kg weight on one side and 2 kg weight with Half past 3 (3:30) (c) Quarter past 11 (11:15) G. Do yourself
the fruits an the other side. Thus weight of fruits = 5 – 2 = 3 kg H. (a) 15 (b) past 5 (c) 7 : 30; 30 minutes past 7 (d) between (e)
4. First she should fill 5 litres vessel and pour into the drum. quarter; 4 (f) quarter; 8 (g) 5 (h) 6 : 20 (i) 20 (j) 4 Mental
Then she should fill 5 litres vessel and from it fill the 2 litres Maths-2 A. (a) 1 hour (b) 15 minutes (c) 2 minutes (d) 2 hours
vessel. Then she should pour the remaining 3 litres water in (e) 5 minutes (f) 8 hours (g) 20 minutes (h) 5 minutes (i) 30
the drum. 5. Do yourself minutes (j) 2 hours (k) 5 minutes (l) 2 minutes (m) 10 minutes
10. Geometry (n) 5 hours (o) 25 minutes B. (a) 10 a.m. (b) 5:45 p.m. (c) 5
Mental Maths-1 A. (a) dot (b) two (c) definite (d) no (e) no B. a.m. (d) 3 a.m. (e) 11 p.m. (f) 3 p.m. (g) 12:30 p.m. (h) 6 p.m.
(a) curved line (b) slanting/oblique line AB (c) straight line C. (a) 4 o’clock in the night (b) 4 o’clock in the afternoon (c)
XY C. (a) AB: horizontal BC: vertical CD: horizontal DA: 12:30 hours after noon (d) 10 o’clock in the morning (e) 5:45
vertical, (b) PQ: Oblique, QR: horizontal, RP: oblique hours in the evening (h) 11:30 hours in the night D. (a) p.m.
Mental Maths-2 A. Do yourself B. (a) equal (b) opposite (c) (b) p.m. (c) p.m. (d) a.m.
three (d) no, no (e) four C. (a) circle (b) rectangle (c) square (d) Miscellaneous Questions: 1. (a) 12:45; 15 minutes to 1 (b)
circle D. (a) 17 (b) 9 (c) 7 Mental Maths-3 A. (a) iii (b) i (c) iv 7:45; 15 minutes to 8 (c) 4:45; 15 minutes to 5 2. (a) 10;4 (b) 25
(d) ii B. (a) cone (b) cylinder (d) cylinder (e) sphere minutes; 7 (c) 10 (d) 15 (e) 30 3. (a) 10 minutes (b) 8 hours (c)
Miscellaneous Questions: 1. (a) line segment XY (b) line PQ 10 minutes (d) 2 minutes (e) 5 minutes 4. (a) 12:01 a.m. (b)
(c) oblique line XY 2. (a) two (b) line (c) definite (d) three, 12:01 p.m. (c) 4 a.m. (d) 6 p.m.
three (e) equal (f) four, four (g) no, no (h) one (i) two (j) cube Multiple Choice Questions: 1. (c) 2. (a) 3. (c) 4. (b) 5. (b) 6.
3. (a) rectangle (c) circle (d) rectangle 4. (a) cuboid (b) (c) 7. (a) 8. (d)
cylinder (c) opposite (d) three (e) cube HOTS Questions: 1. 1 April 2. Friday 3. 17 4. June 5. 5:15
Multiple Choice Questions: 1. (c) 2. (c) 3. (b) 4. (c) 5. (a) 6. p.m.

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Answersheet
Mathematics-3