Grade 7 Mathematics – Squares and Square roots Quiz

1. What is the square root of 0.04?

0.2
0.0016
0.02
0.08
Explanation:

2. Find the square of 0.4.

1.6
0.2
0.16
0.02
Explanation:

3. Add the square of 0.2 and 2.5.

0.629
0.7
6.29
5.29
Explanation:

4. Square the product of 2 and 0.2.

0.16
4.84
4.04
2.04
Explanation:

5. Work out the square of 48.

2304
96
2500
192
Explanation:

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

625 m^2
125 m
625 m
625
Explanation:

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

576
674
256
16
Explanation:

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

112
28
784
400
Explanation:

9. Calculate the square of 4/7.

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

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

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

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

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

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

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

13. Work the square of 4.5.

0.0784
16.25
9.0
20.25
Explanation:

14. Work the square of 0.28.

7.84
0.00784
0.0784
0.784
Explanation:

15. Work the square root of 2209.

27
22
47
23
Explanation:

16. Work the square root of 1764.

32
52
47
42
Explanation:

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

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

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

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

19. Calculate the square root of 0.0081.

0.9
0.09
0.0009
0.009
Explanation:

20. The square root of 0.01 is?

0.001
0.1
None of the above
0.0001
Explanation:

21. What is the square of 0.001?

0.000001
0.01
0.00001
0.10
Explanation:

22. What is the square of 1.24?

1537600
1.5376
15.376
1537.6
Explanation:

23. What is the square of 12.4?

15376.0
1537.6
0.15376
153.76
Explanation:

24. What is the square of 2.13?

4536.9
45.369
453.69
4.5369
Explanation:

25. What is the square root of 1.0?

0.01
0.1
0.0001
1
Explanation:

26. What is the square root of 1.5376?

1.24
0.124
12.4
0.0124
Explanation:

27. What is the square root of 4.5369?

213.0
0.213
21.3
2.13
Explanation:

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

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

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

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

30. Find the square root of 256.

16
18
14
26
Explanation:

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

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

32. Which number is a perfect square?

255
256
254
257
Explanation:

33. Which number is a perfect square?

169
2020
2022
2023
Explanation:

34. Which number is a perfect square?

1233
99
1001
64
Explanation:

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

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

36. Which statement is NOT true?

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

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

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

38. The √20 is between which two integers?

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

39. The √40 is between which two integers?

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

40. Which of the following is rational?

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

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

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

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

48
60
81
36
Explanation:

43. Find the best estimate for √18 .

4.4
4.2
4
5.1
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:

2.2
4.1
3.2
2.9
Explanation:

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

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

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

121
361
198
81
Explanation:

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

18
82
64
100
Explanation:

50. What do we call √ ?

radicand
radical symbol
cube root
index
Explanation:

51. Square roots are the opposite of ____________.

Multiplication
Cube Roots
Squaring
Absolute Value
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?

53
21
49
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?

28
36
19
45
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?

9
7
10
8
Explanation:

8 * 8 = 64

58. Which of the following is a perfect square?

64
77
42
50
Explanation:

17 * 17 = 289

59. What is the square root of 49?

7
8
6
5
Explanation:

7 * 7 = 49

60. What is the square of 15?

225
205
245
265
Explanation:

15 * 15 = 225

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

27
53
49
32
Explanation:

8 * 8 = 64

62. What is the square root of 81?

8
10
11
9
Explanation:

9 * 9 = 81

63. Which of the following is a perfect square?

60
40
30
50
Explanation:

17 * 17 = 289

64. What is the square of 17?

307
341
289
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?

36
61
44
52
Explanation:

8 * 8 = 64

67. What is the square root of 121?

11
13
14
12
Explanation:

11 * 11 = 121

68. What is the square of 20?

400
440
420
380
Explanation:

20 * 20 = 400

69. Which of the following is a perfect square?

55
75
65
45
Explanation:

17 * 17 = 289

70. What is the square root of 144?

14
11
12
13
Explanation:

12 * 12 = 144

71. What is the square of 25?

650
700
675
625
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?

13
14
12
15
Explanation:

13 * 13 = 169

74. What is the square of 30?

950
900
850
1000
Explanation:

30 * 30 = 900

75. What is the square root of 196?

16
13
15
14
Explanation:

14 * 14 = 196

76. Which of the following is a perfect square?

57
98
70
84
Explanation:

17 * 17 = 289

77. What is the square root of 225?

16
17
15
18
Explanation:

15 * 15 = 225

78. What is the square of 35?

1425
1225
1125
1325
Explanation:

35 * 35 = 1225

79. Which of the following is a perfect square?

50
125
100
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?

1520
1560
1600
1480
Explanation:

40 * 40 = 1600

82. What is the square root of 289?

16
17
18
19
Explanation:

17 * 17 = 289

83. Which of the following is a perfect square?

64
87
103
96
Explanation:

17 * 17 = 289

84. What is the square root of 324?

17
19
18
20
Explanation:

18 * 18 = 324

85. What is the square of 45?

1975
2025
2075
2125
Explanation:

45 * 45 = 2025

86. Which of the following is a perfect square?

110
130
120
90
Explanation:

17 * 17 = 289

87. What is the square root of 361?

21
18
19
20
Explanation:

19 * 19 = 361

88. What is the square of 50?

2550
2450
2400
2500
Explanation:

50 * 50 = 2500

89. What is the square root of 400?

21
20
19
18
Explanation:

20 * 20 = 400

90. Which of the following is a perfect square?

75
144
99
120
Explanation:

17 * 17 = 289

91. What is the square root of 441?

20
21
22
19
Explanation:

21 * 21 = 441

92. What is the square of 60?

3680
3600
3640
3560
Explanation:

60 * 60 = 3600

93. What is the square root of 484?

25
24
23
22
Explanation:

22 * 22 = 484

94. Which of the following is a perfect square?

130
196
182
156
Explanation:

17 * 17 = 289

95. What is the square root of 529?

23
25
24
26
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?

25
24
23
22
Explanation:

24 * 24 = 576

98. Which of the following is a perfect square?

289
223
183
263
Explanation:

17 * 17 = 289