Personal Learning Exam  >  Personal Learning Videos  >  Abacus Master Class:Become an Expert (English)  >  Abacus Lesson 33 // SUBTRACT- COMPOUND Complementary Numbers Respect to 10- HUNDRED'S Column

Abacus Lesson 33 // SUBTRACT- COMPOUND Complementary Numbers Respect to 10- HUNDRED'S Column Video Lecture | Abacus Master Class:Become an Expert (English) - Personal Learning

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FAQs on Abacus Lesson 33 // SUBTRACT- COMPOUND Complementary Numbers Respect to 10- HUNDRED'S Column Video Lecture - Abacus Master Class:Become an Expert (English) - Personal Learning

1. What is the concept of complementary numbers with respect to 10 in the abacus lesson?
Ans. Complementary numbers with respect to 10 in the abacus lesson refer to pairs of numbers that add up to 10. For example, 7 and 3 are complementary numbers as they add up to 10. This concept is used in subtraction on the abacus to simplify calculations.
2. How does the abacus help in subtracting compound numbers in the hundred's column?
Ans. The abacus provides a visual representation of numbers and their place value, making it easier to subtract compound numbers in the hundred's column. By using the complementary numbers concept, the abacus allows for efficient subtraction by borrowing and adjusting the values in the hundred's column.
3. Can you explain the process of subtracting compound numbers in the hundred's column using complementary numbers on the abacus?
Ans. To subtract compound numbers in the hundred's column using complementary numbers on the abacus, you start by identifying the number being subtracted. Then, find the complementary number to that number with respect to 10. Adjust the values in the hundred's column accordingly, borrowing from the higher place value if necessary. Finally, subtract the remaining digits using the traditional abacus subtraction method.
4. Why is it important to have a good understanding of complementary numbers when using the abacus for subtraction?
Ans. Having a good understanding of complementary numbers is important when using the abacus for subtraction because it simplifies the calculations and reduces the chances of errors. By knowing the complementary numbers to each digit, you can easily adjust the values in the hundred's column and accurately subtract compound numbers.
5. Are there any other applications of complementary numbers in mathematics apart from subtraction on the abacus?
Ans. Yes, complementary numbers have various applications in mathematics beyond subtraction on the abacus. They are used in number theory, algebra, and even in understanding symmetry and patterns. Complementary numbers play a crucial role in mathematical operations and problem-solving, making them an important concept to understand in mathematics.
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