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Published on: 31/10/2025
Download CBSE Class 7th Standard CBSE Mathematics question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 7th Standard CBSE Mathematics
Questions + Answers key
Take MCQ Mathematics Test
1.
Find the value of the expression 4x - 3 for x = 1
4
- 3
3
1
2.
Find the value of the expression 100 - 10x3 for x = 0
10
- 10
100
- 100
3.
Find the value of the expression 5n - 3 for n = - 1
5
- 3
- 8
8
4.
Find the value of the expression x2 + 2x + 1 for x = - 1
0
1
- 1
2
5.
Find the value of the expression a + b for a = 1, b = 2
1
2
3
4
6.
Find the value of the expression a2 - 2ab + b2 for a = 1, b = 1
1
0
- 1
2
7.
Find the value of the expression a2 - b2 for a = 2, b = 1
1
2
3
4
8.
Find the value of the expression a2 + b2 for a = 1, b = 0
1
0
2
4
9.
Find the value of the expression a2 + ab + 1 for a = 0, b = 1
0
1
- 1
2
10.
Find the value of the expression 3x + 5(x - 2) for x = 2
2
4
5
6
11.
Find the value of the expression z3 - 2(z - 10) for z = 10
10
100
1000
10000
12.
Find the value of the expression - x + 2 for x = -2
1
2
3
4
13.
Find the value of the expression 3p + 7 for p = - 2
1
- 1
2
- 2
14.
Find the value of the expression a3 + b3 + c3 - 3abc for a = 2, b = 3, c = 4
3
6
9
27
15.
If the value of the expression x2 - 5x + k for x = 0 is 5, then the value of k is
2
3
4
5
16.
(20 + 30) x 40 =
1
3
4
5
17.
30 + 40 + 50=
1
2
3
none of these
18.
which of the following true?
20=(100)0
102 x 108 x1016
22 x 33 =65
23>32
19.
(22 x 2)2=
23
24
25
26
20.
\(\frac { { 3 }^{ 8 } }{ { 3 }^{ 5 }\times { 3 }^{ 3 } } \)=
1
3
5
8
21.
\(\left( \frac { { a }^{ 4 } }{ { a }^{ 2 } } \right) \times { a }^{ 3 }\)=
a4
a5
a6
a8
22.
\({ 8 }^{ 2 }\div { 2 }^{ 4 }\)=
1
2
3
4
23.
(-2a)3=
2a3
4a3
8a3
-8a3
24.
am \(\div\) bm =
am bm
\(\left( \frac { a }{ b } \right) ^{ m }\)
\( \frac { a }{ b } \)
1
25.
(ab)m =
am bm
am b
abm
ab
26.
333 in standard form is
3.33 x 102
3.33 x 103
3.33 x 101
3.33 x 104
27.
6000 in standard form is
6 x 103
6x106
6 x 104
6 x 105
28.
3430000 in standard form is
3.43 x 106
3.43 x 104
3.43 x 102
3.43 x 1010
29.
1353000000 in standard form is
1.353 x 109
1.353 x 106
1.353 x 103
1.353 x 1012
30.
100000000000 in standard form is
1 x 108
1 x 109
1 x 1010
1 x 1011
1.
(d)
1
2.
(c)
100
3.
(c)
- 8
4.
(a)
0
5.
(c)
3
6.
(b)
0
7.
(c)
3
8.
(a)
1
9.
(b)
1
10.
(d)
6
11.
(c)
1000
12.
(d)
4
13.
(a)
1
14.
(d)
27
15.
(d)
5
16.
(20 + 30) x 40= (1 + 1) x 1 = 2
17.
30 + 40 + 50 = 1 + 1 + 1 = 3
18.
20 = (100)0 = 1
19.
(22 x 2)2 = (22 + 1)2 = (23)2 = 23 x 2 = 26
20.
\(\frac { { 3 }^{ 8 } }{ { 3 }^{ 5 }\times { 3 }^{ 3 } } \)=\(\frac { { 3 }^{ 8 } }{ { 3 }^{ 5+3 } } \)=\(\frac { { 3 }^{ 8 } }{ { 3 }^{ 8 } } \)=1
21.
\(\left( \frac { { a }^{ 4 } }{ { a }^{ 2 } } \right) \times { a }^{ 3 }\)=a4-2 x a3 =a2 x a3
22.
\({ 8 }^{ 2 }\div { 2 }^{ 4 }=\frac { (2\times 2\times 2)^{ 2 } }{ { 2 }^{ 4 } } =\frac { \left( { 2 }^{ 3 } \right) ^{ 2 } }{ { 2 }^{ 4 } } \)
23.
(- 2a)3 = (- 2a) x (- 2a) x (- 2a) = - 8a3
24.
(b)
\(\left( \frac { a }{ b } \right) ^{ m }\)
25.
(a)
am bm
26.
(a)
3.33 x 102
27.
(a)
6 x 103
28.
(a)
3.43 x 106
29.
(a)
1.353 x 109
30.
(d)
1 x 1011
7th Standard CBSE Syllabus & Materials
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