Grade 7 Mathematics – Squares and Square roots Quiz

1. What is the square root of 0.04?

0.2
0.02
0.08
0.0016
Explanation:

2. Find the square of 0.4.

0.2
1.6
0.16
0.02
Explanation:

3. Add the square of 0.2 and 2.5.

0.7
0.629
5.29
6.29
Explanation:

4. Square the product of 2 and 0.2.

4.04
4.84
0.16
2.04
Explanation:

5. Work out the square of 48.

96
2500
2304
192
Explanation:

6. A school measures 25 m by 25 m.Calculate the area of the hall.

625 m^2
625
625 m
125 m
Explanation:

7. Calculate the difference in the squares if 25 and 7.

256
576
674
16
Explanation:

8. What is the sum of squares of 12 and 16?

28
112
784
400
Explanation:

9. Calculate the square of 4/7.

8/14
16/49
8/7
2/7
Explanation:

10. What is the square of 1 1/3?

1 1/9
1 7/9
2/3
17/9
Explanation:

11. The length of a square office is 6 2/3 m.What is the area ?

44 4/9 m
36 4/9 m^2
44 4/9 m^2
36 4/9 m
Explanation:

12. What is the sum of squares of 2 1/2 and 4 1/4?

6 3/4
24 5/16
20 5/16
36 9/16
Explanation:

13. Work the square of 4.5.

16.25
0.0784
9.0
20.25
Explanation:

14. Work the square of 0.28.

7.84
0.784
0.0784
0.00784
Explanation:

15. Work the square root of 2209.

23
47
22
27
Explanation:

16. Work the square root of 1764.

42
32
52
47
Explanation:

17. What is the square root of 169/625?

13/25
16 3/35
12/25
2 21/25
Explanation:

18. Work out the square root of 5 4/9.

5 2/3
2 2/3
49/9
2 1/3
Explanation:

19. Calculate the square root of 0.0081.

0.09
0.0009
0.009
0.9
Explanation:

20. The square root of 0.01 is?

0.0001
None of the above
0.1
0.001
Explanation:

21. What is the square of 0.001?

0.10
0.01
0.000001
0.00001
Explanation:

22. What is the square of 1.24?

1.5376
1537.6
15.376
1537600
Explanation:

23. What is the square of 12.4?

1537.6
153.76
15376.0
0.15376
Explanation:

24. What is the square of 2.13?

453.69
45.369
4.5369
4536.9
Explanation:

25. What is the square root of 1.0?

0.0001
1
0.01
0.1
Explanation:

26. What is the square root of 1.5376?

1.24
0.0124
12.4
0.124
Explanation:

27. What is the square root of 4.5369?

213.0
21.3
2.13
0.213
Explanation:

28. In between what two integers is the square root of 77?

5 and 6
8 and 9
6 and 7
7 and 8
Explanation:

29. In between what two integers is the square root of 44?

5 and 6
3 and 4
6 and 7
4 and 5
Explanation:

30. Find the square root of 256.

14
26
16
18
Explanation:

31. What two integers is the square root of 48 between?

23 and 25
7 and 8
5 and 6
6 and 7
Explanation:

32. Which number is a perfect square?

256
257
254
255
Explanation:

33. Which number is a perfect square?

2022
169
2023
2020
Explanation:

34. Which number is a perfect square?

64
1233
99
1001
Explanation:

35. Between which two whole numbers is the square root of 277?

16 and 17
14 and 15
18 and 19
15 and 16
Explanation:

36. Which statement is NOT true?

√169 = 13
√164 = 18
15 squared = 225
4 squared = √16
Explanation:

37. The square root of 210 is between which two numbers?

17 and 18
13 and 14
14 and 15
15 and 16
Explanation:

38. The √20 is between which two integers?

4 & 5
5 & 6
3 & 4
2 & 3
Explanation:

39. The √40 is between which two integers?

5 & 6
7 & 8
6 & 7
4 & 5
Explanation:

40. Which of the following is rational?

√25
√12
0.211232112421125. . . .
π
Explanation:

41. The following numbers are displayed below. √81 and 9 Which value is greater?

they are equivalent
√81
can't be determined
9
Explanation:

42. Which number has a square root that is between 7 and 8?

60
48
81
36
Explanation:

43. Find the best estimate for √18 .

5.1
4.4
4.2
4
Explanation:

44. The square root of 1.96 is_____

0.12
1.4
0.14
1.2
Explanation:

45. Estimate √5 to the nearest tenth:

2.9
4.1
2.2
3.2
Explanation:

46. If I know the area of a square, how do I find the side length?

I divide the area by 2.
I take the square root of the area.
I divide the area by 4.
I square the area.
Explanation:

47. The area of a square is 117 square meters. Which best represents the length of a side of the square?

11.2 m
10 m
10.8 m
11 m
Explanation:

48. All the following are Perfect Squares except for which one?

361
121
198
81
Explanation:

49. Which would be the next number in the pattern? 36, 49, 64, 81 __

100
82
64
18
Explanation:

50. What do we call √ ?

radical symbol
cube root
radicand
index
Explanation:

51. Square roots are the opposite of ____________.

Multiplication
Squaring
Absolute Value
Cube Roots
Explanation:

52. What is the square of 8?

54
64
48
72
Explanation:

8 * 8 = 64

53. Which of the following is a perfect square?

21
49
53
35
Explanation:

17 * 17 = 289

54. What is the square root of 25?

3
5
8
6
Explanation:

5 * 5 = 25

55. Which of the following numbers is a perfect square?

45
28
36
19
Explanation:

8 * 8 = 64

56. What is the square of 12?

144
162
128
156
Explanation:

12 * 12 = 144

57. What is the square root of 64?

10
8
7
9
Explanation:

8 * 8 = 64

58. Which of the following is a perfect square?

42
64
77
50
Explanation:

17 * 17 = 289

59. What is the square root of 49?

8
7
6
5
Explanation:

7 * 7 = 49

60. What is the square of 15?

265
205
245
225
Explanation:

15 * 15 = 225

61. Which of the following numbers is a perfect square?

49
32
27
53
Explanation:

8 * 8 = 64

62. What is the square root of 81?

11
8
9
10
Explanation:

9 * 9 = 81

63. Which of the following is a perfect square?

30
40
60
50
Explanation:

17 * 17 = 289

64. What is the square of 17?

307
289
341
324
Explanation:

17 * 17 = 289

65. What is the square root of 100?

10
11
9
12
Explanation:

10 * 10 = 100

66. Which of the following numbers is a perfect square?

44
36
52
61
Explanation:

8 * 8 = 64

67. What is the square root of 121?

12
14
11
13
Explanation:

11 * 11 = 121

68. What is the square of 20?

380
400
440
420
Explanation:

20 * 20 = 400

69. Which of the following is a perfect square?

55
45
75
65
Explanation:

17 * 17 = 289

70. What is the square root of 144?

12
11
13
14
Explanation:

12 * 12 = 144

71. What is the square of 25?

625
650
700
675
Explanation:

25 * 25 = 625

72. Which of the following numbers is a perfect square?

64
48
39
53
Explanation:

8 * 8 = 64

73. What is the square root of 169?

15
13
14
12
Explanation:

13 * 13 = 169

74. What is the square of 30?

1000
850
950
900
Explanation:

30 * 30 = 900

75. What is the square root of 196?

13
16
15
14
Explanation:

14 * 14 = 196

76. Which of the following is a perfect square?

70
57
84
98
Explanation:

17 * 17 = 289

77. What is the square root of 225?

18
16
15
17
Explanation:

15 * 15 = 225

78. What is the square of 35?

1225
1425
1125
1325
Explanation:

35 * 35 = 1225

79. Which of the following is a perfect square?

50
100
125
75
Explanation:

17 * 17 = 289

80. What is the square root of 256?

14
17
16
15
Explanation:

16 * 16 = 256

81. What is the square of 40?

1480
1600
1520
1560
Explanation:

40 * 40 = 1600

82. What is the square root of 289?

16
18
19
17
Explanation:

17 * 17 = 289

83. Which of the following is a perfect square?

87
64
103
96
Explanation:

17 * 17 = 289

84. What is the square root of 324?

20
17
18
19
Explanation:

18 * 18 = 324

85. What is the square of 45?

2125
2025
2075
1975
Explanation:

45 * 45 = 2025

86. Which of the following is a perfect square?

90
120
110
130
Explanation:

17 * 17 = 289

87. What is the square root of 361?

19
21
20
18
Explanation:

19 * 19 = 361

88. What is the square of 50?

2450
2500
2400
2550
Explanation:

50 * 50 = 2500

89. What is the square root of 400?

18
19
21
20
Explanation:

20 * 20 = 400

90. Which of the following is a perfect square?

120
75
144
99
Explanation:

17 * 17 = 289

91. What is the square root of 441?

21
19
22
20
Explanation:

21 * 21 = 441

92. What is the square of 60?

3640
3680
3600
3560
Explanation:

60 * 60 = 3600

93. What is the square root of 484?

23
25
24
22
Explanation:

22 * 22 = 484

94. Which of the following is a perfect square?

130
182
156
196
Explanation:

17 * 17 = 289

95. What is the square root of 529?

24
26
23
25
Explanation:

23 * 23 = 529

96. What is the square of 70?

4840
4960
5020
4900
Explanation:

70 * 70 = 4900

97. What is the square root of 576?

23
25
24
22
Explanation:

24 * 24 = 576

98. Which of the following is a perfect square?

263
289
223
183
Explanation:

17 * 17 = 289

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