Dividing by Nine: Shortcut Method

The video tutorial introduces a shortcut for dividing numbers by nine without relying on a calculator. It demonstrates the technique through several examples, showing how to handle remainders and convert results into decimal form. The method involves bringing down digits, adding them, and dividing by nine, with a focus on efficiency and speed.

What is the main advantage of using the shortcut method for dividing by nine?

• It is faster than using a calculator.

• It eliminates the need for any calculations.

• It is more accurate than a calculator.

• It can only be used for small numbers.

In the example of 207 divided by 9, what is the first step in the shortcut method?

• Multiply the first digit by 9.

• Add all the digits together.

• Subtract 9 from the first digit.

• Bring down the first digit.

When using the shortcut method on 5,112 divided by 9, what is the result after the first two steps?

• 57

• 56

• 68

• 69

How do you handle a sum greater than 9 in the shortcut method, as seen in the example of 1,566 divided by 9?

• Add the extra digit to the next sum.

• Ignore the extra digit.

• Subtract 9 from the sum.

• Divide the sum by 9 immediately.

In the example of 5,386 divided by 9, what is the remainder after applying the shortcut method?

• 5

• 4

• 3

• 2

What is the result of 5,386 divided by 9 using the shortcut method, including the remainder?

• 601 with a remainder of 1

• 598 with a remainder of 4

• 599 with a remainder of 3

• 600 with a remainder of 2

In the example of 1,841 divided by 9, what is the final quotient before considering the remainder?

• 204

• 205

• 206

• 207

How is the decimal place handled in the example of 7,874 divided by 9?

• By converting the remainder into a decimal.

• By adding the remainder as a fraction.

• By multiplying the remainder by 10.

• By ignoring the remainder.

What is the final result of 7,874 divided by 9, including the decimal places?

• 875.88

• 877.88

• 876.88

• 874.88

What is the purpose of drawing a line in the shortcut method?

• To indicate the end of the calculation.

• To show where to place the remainder.

• To mark the last digit for addition.

• To separate the digits.