Chapter 1: Q. 5E (page 18)

Evaluate the expression $3 ∙ 8 + 5 ∙ 4$

Short Answer

Expert verified

The value of expression $3 \cdot 8 + 5 \cdot 4$ is $44$

Step by step solution

Step 1. Use the rule of Product

According to the rule of product if there are a ways of doing something and b ways of doing another thing, then there are $a \times b$ ways to perform both of these actions

Step 2. Use of addition

Always same sign of numbers add together in the expression

Step 3. Calculation

To evaluate the expression $3 \cdot 8 + 5 \cdot 4$ multiply 3 by 8 and multiply 5 by 4 and then add the result

\begin{array}{l} 3 \cdot 8 + 5 \cdot 4 = 24 + 20 \\ 3 \cdot 8 + 5 \cdot 4 = 44 \end{array}

So, the value of the expression $3 \cdot 8 + 5 \cdot 4$ is $44$

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Evaluate the expression $3 ∙ 8 + 5 ∙ 4$

Short Answer

Step by step solution

Step 1. Use the rule of Product

Step 2. Use of addition

Step 3. Calculation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Mechanics Maths

Applied Mathematics

Logic and Functions

Decision Maths

Pure Maths

Geometry

Study anywhere. Anytime. Across all devices.

Evaluate the expression 3∙8+5∙4

Short Answer

Step by step solution

Step 1. Use the rule of Product

Step 2. Use of addition

Step 3. Calculation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Mechanics Maths

Applied Mathematics

Logic and Functions

Decision Maths

Pure Maths

Geometry

Study anywhere. Anytime. Across all devices.

Evaluate the expression $3 ∙ 8 + 5 ∙ 4$