Std : 6 1Mental Maths Competition® 2013
SECTION 1 (Mental Maths Calculation)
1. 35610 less than 64321 =_______(a) 28611 (b) 28911
(c) 28711 (d) 27811
2. 5164 more than 41363 =_______(a) 46427 (b) 46327
(c) 46627 (d) 46527
3. 9810 is _______ less than10000.(a) 190 (b) 170
(c) 180 (d) 201
4. 4736 is _______ more than2500(a) 7235 (b) 2236
(c) 2136 (d) 7036
5. (4346 + 1163) – (2264) =_______(a) 3245 (b) 3145
(c) 3045 (d) 2945
6. (8544 + 3164) – (2134) =_______(a) 8444 (b) 9754
(c) 9574 (d) 8244
7. 3 A 4 3+ 4 3 2 B 7 8 C 7
A + B + C =(a) 15 (b) 16
(c) 17 (d) 18
8. 8 A 7 B– 4 8 2 3 4 1 C 4
A + B + C =(a) 22 (b) 24
(c) 21 (d) 25
9. Which of following is 800less than 2234(a) 1234 (b) 1334
(c) 1134 (d) 1434
10. 3419 is _____ hundreds morethan 2219.(a) 120 (b) 2
(c) 12 (d) 1200
11. 3 1× 4 7_____(a) 1357 (b) 1457
(c) 1257 (d) 1557
Std : 6 2Mental Maths Competition® 2013
12. 6 3× 4 7_____(a) 2961 (b) 2861
(c) 2061 (d) 2261
13. 9 1 4× 2 1 2_______(a) 193668 (b) 193578
(c) 193768 (d) 194678
14. 4 5 6× 3 6 1_______(a) 163616 (b) 164616
(c) 165616 (d) 162616
15. 434723
(a) 179 (b) 187
(c) 169 (d) 189
16. 866419
(a) 356 (b) 556
(c) 456 (d) 656
17. )568( × (5 × 3) – 549
(a) 89 (b) 99
(c) 79 (d) 69
18. [9 × 9] – [4 × 7] – [3 × 6](a) 35 (b) 45
(c) 25 (d) 65
19. 15 tens ÷ 6= ________(a) 45 (b) 35
(c) 40 (d) 25
20. 40 tens × 8 = ________(a) 320 (b) 500
(c) 3200 (d) 50
21. 98
+ 31
=
(a) 1 (b) 911
(c) 97
(d) 2711
22. 61
+ 21
=
(a) 32
(b) 31
(c) 34
(d) 35
23. 169
– 41
=
(a) 163
(b) 166
(c) 165
(d) 164
24. 724
– 41
=
(a) 2886
(b) 2889
(c) 2899
(d) 2887
Std : 6 3Mental Maths Competition® 2013
25. 94
, 21
, 71
, 97
The smallest
fraction is _______
(a) 71
(b) 94
(c) 21
(d) 97
26. 81
, 73
, 94
, 75
the greatest
fraction is ______
(a) 73
(b) 94
(c) 81
(d) 75
27. 41
= 12
The missing number is(a) 46 (b) 47
(c) 48 (d) 43
28. 51
= 4
(a) 30 (b) 20
(c) 35 (d) 40
29. 43
× 98
× 716
=
(a) 3332
(b) 2232
(c) 2132
(d) 2732
30. 89
× 34
× 37
=
(a) 37
(b) 67
(c) 27
(d) 87
31. 76
÷ 4235
=
(a) 3536
(b) 3336
(c) 4136
(d) 4536
32. 709
÷ 3545
=
(a) 103
(b) 101
(c) 107
(d) 1013
33. 7 31
× 13 = _______
(a) 3287
(b) 3285
(c) 3288
(d) 3286
34. 3 41
× 11 = _______
(a) 4
143(b)
4144
(c) 4
141(d)
4142
Std : 6 4Mental Maths Competition® 2013
35. 5 kg 430 grm + 3 kg 650 grm= _________ kg(a) 9 kg 80 gm (b) 8 kg 230 gm
(c) 9 kg (d) 9 kg 300 gm
36. 7 l 375 ml = 2l 325 ml + ____(a) 7l (b) 5 l 05 ml
(c) 7l 350ml (d) 5l 50 ml
37. 6 hr 40 min + 7 hrs 38 min=________(a) 13 hrs 50 min (b) 12 hrs 20min
(c) 14 hrs 18 min (d) 14 hrs 30min
38. 6 hrs 40 min – 5hrs 45 min= _________(a) 1 hr 55 min (b) 1 hr 30 min
(c) 1 hr 40 min (d) 55 min
39. Study the number patternwhat will be the nextnumber.17, 33, 65, .....(a) 130 (b) 131
(c) 129 (d) 132
40. 410, 420, 430, .......(a) 460 (b) 450
(c) 470 (d) 440
SECTION 2(Mental Maths Concepts)
41. 17 hundreds 18 ones – = 674Which following numberrepresent (a) 1044 (b) 1034
(c) 1244 (d) 1144
42. A – 4306 = 5213A = B + 600Find the value of B(a) 8019 (b) 8315
(c) 8919 (d) 8991
43. The L.C.M of 3, 6 and 9 is_________(a) 27 (b) 54
(c) 18 (d) 52
44. The H.C.F. of 7, 14 and 21 is_________(a) 7 (b) 14
(c) 21 (d) 147
45. The sum of divisor of 21 is_________(a) 35 (b) 36
(c) 32 (d) 37
Std : 6 5Mental Maths Competition® 2013
46. Which of the followingnumber is exactly divisible by 6(a) 578 (b) 576
(c) 579 (d) 580
47. Which of the followingnumber exactly divisible by 8(a) 4610 (b) 4612
(c) 4614 (d) 4608
48. 480 hecto gram = ______ mg(a) 48,000 (b) 4,80,000
(c) 4,80,00,000 (d) 4,800
49. 546 decalitre = ____ centilitre(a) 5.45 (b) 5,46,000
(c) 54.6 (d) 54,600
50. 350 metre = _________ hectometre(a) 35 (b) 350
(c) 0.35 (d) 3.5
51. In 5 innings Suraj scored35, 65, 45, 50 and 60. Findhis average score?(a) 51 (b) 41
(c) 61 (d) 71
52. 4.5 + 19.8 + 32.865 =_______(a) 56.165 (b) 58.165
(c) 57.165 (d) 55.165
53. 19.782 – 4.56 = _________(a) 16.222 (b) 15.222
(c) 14.222 (d) 13.222
54. 11.6 × 2.6 = _________(a) 29.16 (b) 31.16
(c) 30.16 (d) 35.16
55. 6.23 ÷ 0.7 = _________(a) 8.9 (b) 7.9
(c) 6.9 (d) 5.9
56. 4 × [31 + {7 + 6 ( 7 – 4) }] =(a) 246 (b) 226
(c) 236 (d) 224
57. [8 + (– 9)] – [4 × – 6] = _______(a) 33 (b) 43
(c) 23 (d) 24
58. 25% of 384 = _________(a) 94 (b) 96
(c) 95 (d) 97
59. 15% of 200 = _________(a) 50 (b) 40
(c) 35 (d) 30
60. 50% of 996 = _________(a) 498 (b) 478
(c) 468 (d) 488
Std : 6 6Mental Maths Competition® 2013
SECTION 3 (Mental Maths Challange)
61.
The perimeter of shaded figure is _________ cm(a) 17 cm (b) 18 cm (c) 19 cm (d) 22 cm
62. An employee took 3 hr 20 min to wash 8 cars if the employee tookan equal amount of time to wash each car, how much time hetook to wash 14 cars?(a) 5 hrs 40 min (b) 5 hrs 50 min (c) 5 hrs 30 min (d) 4 hrs 50 min
63. Which of the following numbers is perfect square number _______(a) 1764 (b) 1763 (c) 1765 (d) 1766
64. Amit is 7 years 7 months old now. Suhas is twice as old as Amitand he is 3 years 7 months older than Raju. How old will Rajube in 4 months.(a) 10 years 5 months (b) 12 years 7 months
(c) 11 years 11 months (d) 13 years
65. Find the 15th term is the number sequence. 4, 7, 10,13, ........(a) 48 (b) 47 (c) 45 (d) 46
< < <
<
1 cm
1 cm
Std : 6 7Mental Maths Competition® 2013
66. Study the figure below carefully andfind the perimeter of the figure.
(a) 69 m (b) 70 m (c) 71 m (d) 72 m
67. 20% of 90 + 15% of 40 + 25% of 80 = _________(a) 42 (b) 44 (c) 43 (d) 45
68. At the sale, shirts were sold at 3 for 480 and 5 for ̀ 700, howmuch Mrs. Joshi pay for 38 shirts?(a) 5180 (b) 5280 (c) 5380 (d) 5480
69. Mohit read 41
of a book. If he read further 40 pages, he would
have read 43
of the book. How many pages were there in the
book.(a) 120 (b) 130 (c) 140 (d) 80
70. Ajay spent ` 210 for 4 notebook and 6 pens, if cost of notebookis ` 30. Find cost of 10 pens.(a) ` 150 (b) ̀ 140 (c) ̀ 170 (d) ̀ 180
<
<
<
<
<
<
<
< <
<
<
<
<
<
14 m
2 m
6 m
4 m
12 m
20 m
8 m 3 m
Std : 6 8Mental Maths Competition® 2013
71. In a group of 120 pupils, 52
of them wore glasses, of these 41
were girls and rest are boys . How many boys in the group woreglasses?(a) 36 (b) 42 (c) 35 (d) 34
72. A Jug can hold 6l of water. 2 Jugs can hold as much water as6 bottles. Find the volume of bottle?(a) 4 l (b) 2 l (c) 1 l (d) 5 l
73. The mass of box A is 8 kg more than the mass of box B. Themass of box A is 5 times the mass of box C. What is a mass ofBox B if the mass of box C is 15 kg?(a) 84 kg (b) 82 kg (c) 86 kg (d) 67 kg
74. ` 144 were shared among three girls. Amruta received 41
of the
money and Amita received 61
times more than Amruta.
If Mayuri received the rest of the money. How much wasMayuri’s share?(a) ` 63 (b) ̀ 66 (c) ` 65 (d) ̀ 64
75. 625529 – 8164 = _________
(a) 31 (b) 32 (c) 36 (d) 35
Std : 6 9Mental Maths Competition® 2013