Base Method for Multiplication

The video introduces a unique multiplication technique using base numbers, which simplifies complex calculations. It explains how to choose a base close to the numbers being multiplied, find deviations, and use these to quickly calculate products. The method is demonstrated with examples, including multiplying 9 by 8, 98 by 97, and larger numbers like 9996 by 9997. The video concludes with a promise of more examples in the next session.

What is the main concept introduced in this session for solving multiplication problems quickly?

• Memorizing multiplication tables

• Using a calculator

• Using the concept of base

• Guessing the answer

What should be the first step when given a multiplication problem according to the new technique?

• Add the numbers

• Divide the numbers

• Choose a base close to both numbers

• Multiply directly

What do you do after choosing the base in this multiplication technique?

• Add the base to the numbers

• Subtract the base from each number

• Multiply the base with each number

• Divide the base by each number

In the example of multiplying 9 and 8, what is the base used?

• 100

• 10

• 1

• 1000

What is the sum of deviations when multiplying 9 and 8 using the base 10?

• 8

• 7

• 9

• 6

How many digits should be on the right side of the partition when using a base of 10?

• Four

• One

• Two

• Three

When multiplying 98 and 97, what base is chosen?

• 10000

• 1000

• 100

• 10

What is the product of deviations when multiplying 98 and 97 using the base 100?

• 5

• 6

• 8

• 7

How should the product of deviations be written when using a base of 100?

• As a single digit

• As two digits

• As three digits

• As four digits

In the example of multiplying 9996 and 9997, what base is used?

• 100000

• 10000

• 100

• 1000