How to multiply whole numbers by double digit numbers

The video tutorial explains the Chinese method of multiplication, which involves setting up a grid, drawing diagonal lines, and performing multiplications in each space. The results are organized by splitting tens and units, and numbers are added along diagonal bands. The final answer is read from the grid, demonstrating a systematic approach to multiplication without worrying about zeros.

What is a key difference between the Chinese method and other multiplication methods?

• It only works for even numbers.

• It requires attention to zeros.

• It uses a circular grid.

• It does not require attention to zeros.

What is the purpose of drawing diagonal lines in the Chinese method grid?

• To help organize the addition of results.

• To create a decorative pattern.

• To separate different multiplication problems.

• To mark the end of the grid.

In the Chinese method, how are the results of multiplications organized in the grid?

• By writing them outside the grid.

• By arranging them in a circular pattern.

• By splitting tens and units into different boxes.

• By placing all results in a single box.

How do you handle the total of a band if it exceeds a single digit in the Chinese method?

• Ignore the extra digit.

• Write it in a separate box.

• Start a new grid.

• Carry over the extra digit to the next band.

What is the final step in reading the answer from the Chinese method grid?

• Adding all numbers in the grid.

• Reading the numbers diagonally.

• Multiplying the numbers in the last band.

• Reading the numbers outside the grid, down and across.