Maths Integers part 3 (Addition of Integers) CBSE Class 7 Mathematics VII | Summary and Q&A

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September 17, 2016
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Maths Integers part 3 (Addition of Integers) CBSE Class 7 Mathematics VII

TL;DR

Learn how to add and subtract integers by following simple rules and logic.

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Key Insights

  • ✖️ Operations on integers include addition, subtraction, multiplication, and division.
  • 🪜 To add a positive number to an integer, move right; to add a negative number, move left.
  • #️⃣ To subtract a positive number from an integer, move left; to subtract a negative number, move right.
  • 🛟 Adding positive things to your life and removing negatives are both positive actions.
  • 🪜 When adding two positive integers, the overall value of the number increases.
  • #️⃣ When adding a positive to a negative integer, subtract the two numbers and use the sign of the bigger number.
  • 🪜 Adding two negative numbers gives a negative result, and adding two positive numbers gives a positive result.

Transcript

hello friends this video on integers part 3 is brought to you by exam for your calm no more fear from exam now that we have discussed about what are integers and how do we decide which is a bigger integer which is a smaller integer etc now it's time that we discuss about operations on integers now what are the operations that we will discuss the co... Read More

Questions & Answers

Q: What are the common operations on integers discussed in the video?

The common operations on integers discussed in the video are addition, subtraction, multiplication, and division.

Q: How do you decide whether to move left or right when performing addition or subtraction?

When adding a positive number to an integer, move to the right. When adding a negative number or subtracting a positive number, move to the left. When subtracting a negative number, move to the right.

Q: How can you remember the rules for adding and subtracting integers?

To remember the rules, associate adding positive things to your life as moving right and removing negative things from your life as moving left. Adding positive integers moves right, subtracting negative integers moves right, and the opposite for adding negative and subtracting positive integers.

Q: What is the rule for adding or subtracting two negative numbers?

When adding or subtracting two negative numbers, just add the two numbers together and put a negative sign before the sum.

Summary & Key Takeaways

  • The video explains the rules for adding and subtracting integers.

  • When adding a positive number to an integer, move to the right; when adding a negative number, move to the left.

  • When subtracting a positive number from an integer, move to the left; when subtracting a negative number, move to the right.

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