NCERT Solutions for Class 7 Maths Chapter 1 Integers Ex 1.2 are part of NCERT Solutions for Class 7 Maths. Here we have given NCERT Solutions for Class 7 Maths Chapter 1 Integers Ex 1.2.

Board |
CBSE |

Textbook |
NCERT |

Class |
Class 7 |

Subject |
Maths |

Chapter |
Chapter 1 |

Chapter Name |
Integers |

Exercise |
Ex 1.2 |

Number of Questions Solved |
4 |

Category |
NCERT Solutions |

## NCERT Solutions for Class 7 Maths Chapter 1 Integers Ex 1.2

**Question 1.**

Write down a pair of integers whose:

**(a)** the sum is -7

**(b)** the difference is -10

**(c)** the sum is 0.

**Solution:**

**(a)** (-15) and 8

**(b)** 15 and 25.

**(c)** (-49) and 49

**Question 2.**

**(a)** Write a pair of negative integers whose difference gives 8.

**(b)** Write a negative integer and a positive integer whose sum is -5.

**(c)** Write a negative integer and a positive integer whose difference is -3.

**Solution:**

**(a)** (-10) and (-18)

**(b)** (-10) and 5

**(c)** (-1) and 2

**Question 3.**

In a quiz, team A scored – 40, 10,0 and team B scored 10, 0, – 40 in three successive rounds. Which team scored more? Can we say that we can add integers in any order?

**Solution:**

Total scores of team A = (- 40) + 10 + 0 = – 40 + 10 + 0 = – 30

and, total scores of team B = 10 + 0 + (- 40) = 10 + 0 – 40 = – 30

Since the total scores of each team are equal.

∴ No team scored more than the other but each has an equal score.

Yes, integers can be added in any order and the result remains unaltered.

For example, 10 + 0 + (-40) = -30 = -40 + 0 + 10

**Question 4.**

Fill in the blanks to make the following statements true:

- (-5) + (-8) = (+8) + (……)
- -53 + …… = -53.
- 17 + …… = 0
- [13 + (-12)] + (…… ) = 13 + [(-12) + (- 7)]
- (- 4) + [15 + (- 3)] = [(-4) + 15] + …….

**Solution:**

- (-5) + (-8) = (-8) +
**(- 5)** - -53 +
**0**= -53 - 17 +
**(- 17)**= 0 - [13 + (- 12)] +
**(- 7)**= 13 + [(- 12) + (-7)] - (- 4) + [15 + (- 3)] = [(- 4) + 15] +
**(- 3)**.

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