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Abacus Lesson 21 // Intro. to Complementary Numbers with Respect to 10 Video Lecture | Abacus Master Class:Become an Expert (English) - Personal Learning

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FAQs on Abacus Lesson 21 // Intro. to Complementary Numbers with Respect to 10 Video Lecture - Abacus Master Class:Become an Expert (English) - Personal Learning

1. What are complementary numbers with respect to 10?
Ans. Complementary numbers with respect to 10 are pairs of numbers that add up to 10. For example, 3 and 7 are complementary numbers because 3 + 7 = 10.
2. How do complementary numbers relate to an abacus?
Ans. Complementary numbers are important in using an abacus because they help to simplify calculations. By understanding complementary numbers, you can quickly identify pairs that add up to 10, making addition and subtraction on the abacus more efficient.
3. How can I identify complementary numbers on an abacus?
Ans. To identify complementary numbers on an abacus, you can look for pairs of beads that are on opposite sides of the center bar. For example, if you see a bead on the left side of the center bar, you can look for the bead on the right side that completes the pair and adds up to 10.
4. Can complementary numbers be used for multiplication on an abacus?
Ans. Yes, complementary numbers can be used for multiplication on an abacus. By using the concept of complementary numbers, you can simplify multiplication calculations by breaking them down into smaller, more manageable steps.
5. Are complementary numbers only applicable to the abacus?
Ans. No, complementary numbers are not limited to the abacus. The concept of complementary numbers is a fundamental mathematical concept that can be applied in various areas of mathematics and problem-solving. It can be useful in mental calculations, arithmetic operations, and even in understanding patterns and relationships in numbers.
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