## Find the square of the following numbers without doing any calculation :1)15 2)25 3)35 4) 45 5)55 6)65 7

Question

Find the square of the following numbers
without doing any calculation :1)15
2)25
3)35
4) 45
5)55
6)65
7)75
8) 85
9)95
10)305​

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4 weeks 2021-11-03T19:14:33+00:00 2 Answers 0 views 0

1. i can tell you the method

25 x 25=   _ _ _ _

if both nos. are ending in 5, then last two nos. are 25

so, ans= _ _ 25

the first digit of the numbers is 2

so, the first nos. of answer is 2 x (2+1)= 06

you can do the rest by the same method

2. NUMBER SQUARE SQUARE ROOT

1 1 1.000

2 4 1.414

3 9 1.732

4. 16 2.000

5 25 2.236

6 36 2.449

7 49 2.646

8 64 2.828

9 81 3.000

10 100 3.162

11 121 3.317

12 144 3.464

13 169 3.606

14 196 3.742

15 225 3.873

16 256 4.000

17 289 4.123

18 324 4.243

19 361 4.359

20 400 4.472

21 441 4.583

22 484 4.690

23 529 4.796

24 576 4.899

25 625 5.000

26 676 5.099

27 729 5.196

28 784 5.292

29 841 5.385

30 900 5.477

31 961 5.568

32 1,024 5.657

33 1,089 5.745

34 1,156 5.831

35 1,225 5.916

36 1,296 6.000

37 1,369 6.083

38 1,444 6.164

39 1,521 6.245

40 1,600 6.325

41 1,681 6.403

42 1,764 6.481

43 1,849 6.557

44 1,936 6.633

45 2,025 6.708

46 2,116 6.782

47 2,209 6.856

48 2,304 6.928

49 2,401 7.000

50 2,500 7.071

51 2,601 7.141

52 2,704 7.211

53 2,809 7.280

54 2,916 7.348

55 3,025 7.416

56 3,136 7.483

57 3,249 7.550

58 3,364 7.616

59 3,481 7.681

60 3,600 7.746

61 3,721 7.810

62 3,844 7.874

63 3,969 7.937

64 4,096 8.000

65 4,225 8.062

66 4,356 8.124

67 4,489 8.185

68 4,624 8.246

69 4,761 8.307

70 4,900 8.367

71 5,041 8.426

72 5,184 8.485

73 5,329 8.544

74 5,476 8.602

75 5,625 8.660

76 5,776 8.718

77 5,929 8.775

78 6,084 8.832

79 6,241 8.888

80 6,400 8.944

81 6,561 9.000

82 6,724 9.055

83 6,889 9.110

84 7,056 9.165

85 7,225 9.220

86 7,396 9.274

87 7,569 9.327

88 7,744 9.381

89 7,921 9.434

90 8,100 9.487

91 8,281 9.539

92 8,464 9.592

93 8,649 9.644

94 8,836 9.695

95 9,025 9.747

96 9,216 9.798

97 9,409 9.849

98 9,604 9.899

99 9,801 9.950

100 10,000 10.000

NOTE: Square roots in this table are rounded to the nearest thousand. IF YOU ARE BENEFITED BY MY TABLE OF SQUARE ROOTS THEN PLEASE LET ME KNOW . MY NAME IS SHREE SRIVASTAVA.