Class 7 Integers CBSE Questions & Answers

Class 7 · Integers

This is Mathematics Class 7 Integers CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
\(\left( { - {\text{3}}} \right){\text{ }} \times {\text{ 5 }} = {\text{ }}\_\_\_\_\_\)
  • A
    15
  • B
    2
  • C
    -2
  • D
    -15
    Correct
2
\(\left( { - {\text{2}}} \right){\text{ }} \times {\text{ }}\left( { - {\text{5}}} \right){\text{ }} \times {\text{ }}\left( { - {\text{3}}} \right){\text{ }} = {\text{ }}\_\_\_\_\_\_\_\)
  • A
    30
  • B
    -30
    Correct
  • C
    10
  • D
    -10
3
\(\left( {-{\text{ 8}}} \right){\text{ }} \times {\text{ }}\left[ {\left( {-{\text{2}}} \right){\text{ }} + {\text{ }}\left( {--{\text{1}}} \right)} \right]{\text{ }} = {\text{ }}\_\_\_\_\_\_\)
  • A
    -24
  • B
    11
  • C
    24
    Correct
  • D
    -11
4
\({\text{72 }} \div {\text{ }}\left( {-{\text{ 8}}} \right){\text{ }} = {\text{ }}\_\_\_\_\_\_\)
  • A
    -8
  • B
    8
  • C
    9
  • D
    -9
    Correct
5
On a number line when we subtract a _______ integer, we move to the left.
  • A
    positive
    Correct
  • B
    None of these
  • C
    negative
  • D
    similar
6
For any integers a, b and c, we can say a + (b + c) = __________.
  • A
    None of these
  • B
    (a - b) + c
  • C
    (a + b) - c
  • D
    (a + b) + c
    Correct
7
Find: \({\text{125 }} \div {\text{ }}\left( {--{\text{25}}} \right)\)
  • A
    None of these
  • B
    -5
    Correct
  • C
    25
  • D
    5
8
Find: \(\left( {-{\text{325}}} \right){\text{ }} \div {\text{ }}\left( {-{\text{13}}} \right)\)
  • A
    25
    Correct
  • B
    -25
  • C
    15
  • D
    13
9
A shopkeeper earns a profit of Re 1 by selling one pen and incurs a loss of 40 paise per pencil while selling pencils of her old stock. In a particular month she incurs a loss of Rs 5. In this period, she sold 45 pens. How many pencils did she sell in this period?
  • A
    5
  • B
    25
  • C
    125
    Correct
  • D
    50
10
Suppose we represent the distance above the ground by a positive integer and that below the ground by a negative integer. An elevator descends into a mine shaft at the rate of 5 metres per minute. What will be its position after one hour?
  • A
    None of these
  • B
    200 m below
  • C
    300 m above
  • D
    300 m below
    Correct
11
A plane is flying at the height of 5000 m above the sea level. At a particular point, it is exactly above a submarine floating 1500 m below the sea level. What is the vertical distance between them?
  • A
    3500 m
  • B
    6000 m
  • C
    6500 m
    Correct
  • D
    3000 m
12
\(\left( { - {\text{5}}} \right){\text{ }} \times {\text{ 6 }} = {\text{ }}\_\_\_\_\_\)
  • A
    30
  • B
    -30
    Correct
  • C
    -11
  • D
    11
13
\(\left( { - {\text{6}}} \right){\text{ }} \times {\text{ }}\left( { - {\text{4}}} \right){\text{ }} \times {\text{ }}\left( { - {\text{2}}} \right){\text{ }} = {\text{ }}\_\_\_\_\_\_\_\)
  • A
    -12
  • B
    -48
    Correct
  • C
    48
  • D
    12
14
\({\text{1}}0{\text{ }} \times {\text{ }}[\left( {{\text{6 }} + {\text{ }}\left( {-{\text{2}}} \right)} \right]{\text{ }} = {\text{ }}\_\_\_\_\_\_\_\)
  • A
    40
    Correct
  • B
    -80
  • C
    80
  • D
    -40
15
\({\text{21 }} \div {\text{ }}\left( {-{\text{3}}} \right){\text{ }} = \_\_\_\_\_\_\_\)
  • A
    -7
    Correct
  • B
    7
  • C
    -18
  • D
    18