Grade 7 Mathematics – Squares and Square roots Quiz

1. What is the square root of 0.04?

0.02
0.2
0.0016
0.08
Explanation:

2. Find the square of 0.4.

1.6
0.02
0.2
0.16
Explanation:

3. Add the square of 0.2 and 2.5.

5.29
6.29
0.7
0.629
Explanation:

4. Square the product of 2 and 0.2.

4.04
2.04
0.16
4.84
Explanation:

5. Work out the square of 48.

2304
2500
192
96
Explanation:

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

625 m
625
625 m^2
125 m
Explanation:

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

16
576
674
256
Explanation:

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

784
28
112
400
Explanation:

9. Calculate the square of 4/7.

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

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

1 1/9
17/9
1 7/9
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
36 4/9 m^2
Explanation:

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

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

13. Work the square of 4.5.

0.0784
20.25
9.0
16.25
Explanation:

14. Work the square of 0.28.

0.0784
7.84
0.00784
0.784
Explanation:

15. Work the square root of 2209.

23
47
22
27
Explanation:

16. Work the square root of 1764.

52
47
32
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.

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

19. Calculate the square root of 0.0081.

0.9
0.0009
0.009
0.09
Explanation:

20. The square root of 0.01 is?

0.1
0.0001
None of the above
0.001
Explanation:

21. What is the square of 0.001?

0.10
0.01
0.00001
0.000001
Explanation:

22. What is the square of 1.24?

15.376
1537600
1.5376
1537.6
Explanation:

23. What is the square of 12.4?

15376.0
0.15376
1537.6
153.76
Explanation:

24. What is the square of 2.13?

45.369
4536.9
453.69
4.5369
Explanation:

25. What is the square root of 1.0?

1
0.1
0.01
0.0001
Explanation:

26. What is the square root of 1.5376?

12.4
0.0124
0.124
1.24
Explanation:

27. What is the square root of 4.5369?

0.213
2.13
213.0
21.3
Explanation:

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

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

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

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

30. Find the square root of 256.

14
26
16
18
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?

256
255
257
254
Explanation:

33. Which number is a perfect square?

2023
169
2022
2020
Explanation:

34. Which number is a perfect square?

64
99
1001
1233
Explanation:

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

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

36. Which statement is NOT true?

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

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

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

38. The √20 is between which two integers?

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

39. The √40 is between which two integers?

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

40. Which of the following is rational?

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

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

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

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

48
36
60
81
Explanation:

43. Find the best estimate for √18 .

4.2
4
5.1
4.4
Explanation:

44. The square root of 1.96 is_____

0.14
1.2
0.12
1.4
Explanation:

45. Estimate √5 to the nearest tenth:

4.1
3.2
2.9
2.2
Explanation:

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

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

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

198
361
81
121
Explanation:

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

82
64
100
18
Explanation:

50. What do we call √ ?

index
cube root
radicand
radical symbol
Explanation:

51. Square roots are the opposite of ____________.

Absolute Value
Cube Roots
Multiplication
Squaring
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?

35
49
21
53
Explanation:

17 * 17 = 289

54. What is the square root of 25?

6
5
8
3
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?

156
162
128
144
Explanation:

12 * 12 = 144

57. What is the square root of 64?

7
9
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?

5
8
6
7
Explanation:

7 * 7 = 49

60. What is the square of 15?

265
225
245
205
Explanation:

15 * 15 = 225

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

32
49
27
53
Explanation:

8 * 8 = 64

62. What is the square root of 81?

11
8
10
9
Explanation:

9 * 9 = 81

63. Which of the following is a perfect square?

40
60
30
50
Explanation:

17 * 17 = 289

64. What is the square of 17?

289
341
307
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?

36
52
44
61
Explanation:

8 * 8 = 64

67. What is the square root of 121?

13
11
12
14
Explanation:

11 * 11 = 121

68. What is the square of 20?

420
440
380
400
Explanation:

20 * 20 = 400

69. Which of the following is a perfect square?

45
65
75
55
Explanation:

17 * 17 = 289

70. What is the square root of 144?

12
14
11
13
Explanation:

12 * 12 = 144

71. What is the square of 25?

675
625
650
700
Explanation:

25 * 25 = 625

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

53
48
64
39
Explanation:

8 * 8 = 64

73. What is the square root of 169?

14
15
13
12
Explanation:

13 * 13 = 169

74. What is the square of 30?

950
850
900
1000
Explanation:

30 * 30 = 900

75. What is the square root of 196?

14
15
16
13
Explanation:

14 * 14 = 196

76. Which of the following is a perfect square?

57
84
98
70
Explanation:

17 * 17 = 289

77. What is the square root of 225?

16
18
17
15
Explanation:

15 * 15 = 225

78. What is the square of 35?

1225
1125
1425
1325
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?

14
16
15
17
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?

19
17
18
16
Explanation:

17 * 17 = 289

83. Which of the following is a perfect square?

87
103
64
96
Explanation:

17 * 17 = 289

84. What is the square root of 324?

19
18
17
20
Explanation:

18 * 18 = 324

85. What is the square of 45?

2025
2125
1975
2075
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?

21
18
19
20
Explanation:

19 * 19 = 361

88. What is the square of 50?

2550
2400
2500
2450
Explanation:

50 * 50 = 2500

89. What is the square root of 400?

21
19
18
20
Explanation:

20 * 20 = 400

90. Which of the following is a perfect square?

99
144
120
75
Explanation:

17 * 17 = 289

91. What is the square root of 441?

22
19
20
21
Explanation:

21 * 21 = 441

92. What is the square of 60?

3560
3600
3680
3640
Explanation:

60 * 60 = 3600

93. What is the square root of 484?

24
23
22
25
Explanation:

22 * 22 = 484

94. Which of the following is a perfect square?

156
130
182
196
Explanation:

17 * 17 = 289

95. What is the square root of 529?

26
24
23
25
Explanation:

23 * 23 = 529

96. What is the square of 70?

5020
4840
4960
4900
Explanation:

70 * 70 = 4900

97. What is the square root of 576?

23
24
25
22
Explanation:

24 * 24 = 576

98. Which of the following is a perfect square?

183
263
223
289
Explanation:

17 * 17 = 289