Find each sum or difference. See Example 1. -2.8 + 4.5

Guida verificata passo dopo passo

Identify the operation to be performed, which is addition of the two numbers: \(-2.8 + 4.5\).

Recall that adding a negative number is equivalent to subtracting its absolute value, so this can be thought of as \(4.5 - 2.8\).

Set up the subtraction: subtract 2.8 from 4.5.

Perform the subtraction by aligning the decimal points and subtracting the digits accordingly.

Write the result as the sum of the original expression.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.

Durata del video:

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Basic Arithmetic Operations

Understanding addition and subtraction of real numbers is fundamental. Here, combining negative and positive decimals requires careful attention to signs and magnitude to find the correct sum or difference.

Video consigliato:

Percorso guidato

04:12

Algebraic Operations on Vectors

Number Line Interpretation

Visualizing numbers on a number line helps in comprehending how adding a positive number moves right and adding a negative number moves left. This aids in accurately determining the result of sums or differences involving negative values.

Video consigliato:

Percorso guidato

3:31

Introduction to Complex Numbers

Decimal Number Handling

Working with decimals requires aligning decimal points and performing operations digit by digit. Precision in decimal arithmetic ensures the correct calculation of sums or differences involving decimal numbers.

Video consigliato:

Percorso guidato

3:31

Introduction to Complex Numbers

Pratica correlata

Domanda del libro di testo

Find the domain of each rational expression. See Example 1. (x³ - 1) / (x - 1)

801

views

Domanda del libro di testo

Find each sum or difference. See Example 1. -7⁄3 + 3⁄4

550