Grade 7 Mathematics – Squares and Square roots Quiz

1. What is the square root of 0.04?

0.08
0.2
0.0016
0.02
Explanation:

2. Find the square of 0.4.

0.02
0.16
0.2
1.6
Explanation:

3. Add the square of 0.2 and 2.5.

0.7
0.629
6.29
5.29
Explanation:

4. Square the product of 2 and 0.2.

4.84
4.04
0.16
2.04
Explanation:

5. Work out the square of 48.

2500
192
2304
96
Explanation:

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

125 m
625 m
625
625 m^2
Explanation:

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

576
16
674
256
Explanation:

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

400
28
112
784
Explanation:

9. Calculate the square of 4/7.

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

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

2/3
1 7/9
1 1/9
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?

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

13. Work the square of 4.5.

0.0784
20.25
16.25
9.0
Explanation:

14. Work the square of 0.28.

0.784
7.84
0.00784
0.0784
Explanation:

15. Work the square root of 2209.

23
22
27
47
Explanation:

16. Work the square root of 1764.

32
42
52
47
Explanation:

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

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

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

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

19. Calculate the square root of 0.0081.

0.009
0.09
0.9
0.0009
Explanation:

20. The square root of 0.01 is?

0.0001
0.1
0.001
None of the above
Explanation:

21. What is the square of 0.001?

0.10
0.00001
0.000001
0.01
Explanation:

22. What is the square of 1.24?

15.376
1537.6
1.5376
1537600
Explanation:

23. What is the square of 12.4?

0.15376
1537.6
153.76
15376.0
Explanation:

24. What is the square of 2.13?

453.69
4536.9
45.369
4.5369
Explanation:

25. What is the square root of 1.0?

0.01
0.0001
0.1
1
Explanation:

26. What is the square root of 1.5376?

0.124
1.24
12.4
0.0124
Explanation:

27. What is the square root of 4.5369?

2.13
0.213
21.3
213.0
Explanation:

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

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

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

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

30. Find the square root of 256.

16
14
18
26
Explanation:

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

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

32. Which number is a perfect square?

257
254
256
255
Explanation:

33. Which number is a perfect square?

2022
2020
2023
169
Explanation:

34. Which number is a perfect square?

99
1233
1001
64
Explanation:

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

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

36. Which statement is NOT true?

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

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

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

38. The √20 is between which two integers?

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

39. The √40 is between which two integers?

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

40. Which of the following is rational?

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

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

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

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

60
36
48
81
Explanation:

43. Find the best estimate for √18 .

4.2
4
4.4
5.1
Explanation:

44. The square root of 1.96 is_____

1.2
1.4
0.14
0.12
Explanation:

45. Estimate √5 to the nearest tenth:

3.2
2.2
2.9
4.1
Explanation:

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

I divide the area by 2.
I divide the area by 4.
I square the area.
I take the square root of 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 m
11.2 m
10 m
10.8 m
Explanation:

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

81
198
121
361
Explanation:

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

64
18
82
100
Explanation:

50. What do we call √ ?

index
radicand
cube root
radical symbol
Explanation:

51. Square roots are the opposite of ____________.

Absolute Value
Squaring
Cube Roots
Multiplication
Explanation:

52. What is the square of 8?

48
54
64
72
Explanation:

8 * 8 = 64

53. Which of the following is a perfect square?

49
35
21
53
Explanation:

17 * 17 = 289

54. What is the square root of 25?

5
3
8
6
Explanation:

5 * 5 = 25

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

45
36
28
19
Explanation:

8 * 8 = 64

56. What is the square of 12?

162
156
128
144
Explanation:

12 * 12 = 144

57. What is the square root of 64?

8
9
10
7
Explanation:

8 * 8 = 64

58. Which of the following is a perfect square?

64
42
77
50
Explanation:

17 * 17 = 289

59. What is the square root of 49?

6
7
5
8
Explanation:

7 * 7 = 49

60. What is the square of 15?

245
225
205
265
Explanation:

15 * 15 = 225

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

53
32
27
49
Explanation:

8 * 8 = 64

62. What is the square root of 81?

11
10
9
8
Explanation:

9 * 9 = 81

63. Which of the following is a perfect square?

60
50
40
30
Explanation:

17 * 17 = 289

64. What is the square of 17?

341
289
307
324
Explanation:

17 * 17 = 289

65. What is the square root of 100?

10
9
11
12
Explanation:

10 * 10 = 100

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

61
52
36
44
Explanation:

8 * 8 = 64

67. What is the square root of 121?

13
14
12
11
Explanation:

11 * 11 = 121

68. What is the square of 20?

440
400
380
420
Explanation:

20 * 20 = 400

69. Which of the following is a perfect square?

45
55
75
65
Explanation:

17 * 17 = 289

70. What is the square root of 144?

11
12
13
14
Explanation:

12 * 12 = 144

71. What is the square of 25?

675
700
625
650
Explanation:

25 * 25 = 625

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

53
48
39
64
Explanation:

8 * 8 = 64

73. What is the square root of 169?

12
14
15
13
Explanation:

13 * 13 = 169

74. What is the square of 30?

900
1000
950
850
Explanation:

30 * 30 = 900

75. What is the square root of 196?

16
15
14
13
Explanation:

14 * 14 = 196

76. Which of the following is a perfect square?

98
84
57
70
Explanation:

17 * 17 = 289

77. What is the square root of 225?

17
18
15
16
Explanation:

15 * 15 = 225

78. What is the square of 35?

1425
1325
1125
1225
Explanation:

35 * 35 = 1225

79. Which of the following is a perfect square?

50
75
100
125
Explanation:

17 * 17 = 289

80. What is the square root of 256?

16
14
15
17
Explanation:

16 * 16 = 256

81. What is the square of 40?

1480
1560
1520
1600
Explanation:

40 * 40 = 1600

82. What is the square root of 289?

18
19
17
16
Explanation:

17 * 17 = 289

83. Which of the following is a perfect square?

87
103
96
64
Explanation:

17 * 17 = 289

84. What is the square root of 324?

20
19
18
17
Explanation:

18 * 18 = 324

85. What is the square of 45?

2075
2125
1975
2025
Explanation:

45 * 45 = 2025

86. Which of the following is a perfect square?

120
130
110
90
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
2400
2500
2550
Explanation:

50 * 50 = 2500

89. What is the square root of 400?

19
20
18
21
Explanation:

20 * 20 = 400

90. Which of the following is a perfect square?

75
99
120
144
Explanation:

17 * 17 = 289

91. What is the square root of 441?

22
20
19
21
Explanation:

21 * 21 = 441

92. What is the square of 60?

3600
3560
3640
3680
Explanation:

60 * 60 = 3600

93. What is the square root of 484?

25
23
22
24
Explanation:

22 * 22 = 484

94. Which of the following is a perfect square?

182
130
196
156
Explanation:

17 * 17 = 289

95. What is the square root of 529?

25
26
23
24
Explanation:

23 * 23 = 529

96. What is the square of 70?

4960
5020
4840
4900
Explanation:

70 * 70 = 4900

97. What is the square root of 576?

23
24
22
25
Explanation:

24 * 24 = 576

98. Which of the following is a perfect square?

263
289
183
223
Explanation:

17 * 17 = 289