/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 488 Add. $$\text { ( a ) }23+18 \t... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Problem 488

Add. $$\text { ( a ) }23+18 \text { ( b ) } 18+23$$

Short Answer

Expert verified
Both (a) and (b) result in 41.

Step by step solution

01

Identifying the Numbers

In part (a), identify the two numbers to be added: 23 and 18. In part (b), identify the two numbers to be added: 18 and 23.
02

Aligning the Numbers

For both parts, align the numbers vertically by their place values (units and tens). For example, for (a) and (b), write 23 on top of 18.
03

Adding the Units Place

Add the numbers in the units column. For both parts (a) and (b), add 3 (from 23) and 8 (from 18), which equals 11. Write down 1 in the units place and carry over 1 to the tens place.
04

Adding the Tens Place

Add the numbers in the tens column along with any carry-over. In both parts (a) and (b), add 2 (from 23), 1 (carry-over from previous step), and 1 (from 18), which equals 4. Write 4 in the tens place.
05

Writing the Final Answer

Combine the results from the tens and units places. For both parts (a) and (b), the final answer is 41.

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Aligning Numbers
When adding numbers, it's crucial to align them properly. This means you must line up the digits according to their place values.
For instance, with numbers like 23 and 18, you align the units digits (3 and 8) right under each other and the tens digits (2 and 1) under each other.
This helps ensure you're adding the correct digits together, reducing errors.
Always write the numbers in a column, with each digit in its place value column.
Adding Units
Once the numbers are aligned, begin by adding the units digits.
For instance, for 23 + 18, you add 3 (units place of 23) and 8 (units place of 18).
In this case, it sums up to 11.
Write down 1 in the units place, but don't forget you still need to handle the tens place of the number 11. This is where carrying over becomes important.
Carry Over in Addition
When the sum of the units digits exceeds 9, you need to carry over to the next place value.
In our example, 3 + 8 equals 11, so you write down the 1 in the units place and carry over the 1 (which represents 10) to the tens place.
Then, add the tens digits: 2 (from 23), 1 (carry-over), and 1 (from 18).
This gives you 4, and you write this 4 in the tens place.
Finally, combining the digits from the tens and units places, you get the answer: 41.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Simplify. $$634+255$$

Divide. Then check by multiplying. $$\frac{97}{1}$$

Translate and simplify. The quotient of 64 and 16

Divide. Then check by multiplying. $$52 \div 4$$

Simplify. $$\frac{0}{9}$$
See all solutions

Recommended explanations on Math Textbooks

Geometry

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Statistics

Read Explanation

Calculus

Read Explanation

Decision Maths

Read Explanation

Discrete Mathematics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.