RS Aggarwal Solutions Class 7 Mathematics Solutions for Integers Exercise 1B in Chapter 1 - Integers

Question 4 Integers Exercise 1B

Multiply:

-105 by -8

Answer:

Solution:-

Using the rule for multiplication of integers.

The above question can be written as,

=-105×-8 … [∵(− × −= +)

=840

(In multiplication we have to multiply the sign of the integers also and then assign the obtained

sign to the answer)

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Exercises

Integers Exercise 1A

Integers Exercise 1B

Integers Exercise 1C

Integers Exercise 1D

Chapters

Integers

Fractions

Decimals

Rational Numbers

Exponents

Algebraic Expressions

Linear Equations in one variable

Ratio and Proportion

Unitary Method

Percentage

Profit and Loss

Simple Interest

Lines and Angles

Properties of Parallel Line

Properties of Triangles

Congruence

Constructions

Reflection and Rotational Symmetry

Three-Dimensional Shapes

Mensuration

Bar Graphs

Probability