Chinese Multiplication Method Concepts

The video tutorial demonstrates the Chinese method for multiplying 46 by 23. It involves setting up a grid with columns and rows based on the digits of the numbers being multiplied. Diagonal lines are drawn through the grid, and simple multiplications are performed in each section. The results are organized by place value, and sums are calculated along diagonal bands. The final answer is read from the numbers outside the grid, resulting in 1058.

What is the first step in setting up the Chinese method for multiplication?

• Using a calculator

• Writing the numbers directly

• Drawing a box and splitting it into columns and rows

• Drawing a circle

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CCSS.4.NBT.B.5

In the Chinese method, what do the columns and rows represent?

• The digits of the numbers being multiplied

• The final answer

• The number of steps

• The number of multiplications

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CCSS.4.NBT.B.5

What is the purpose of drawing diagonal lines through the grid?

• To guide the multiplication process

• To make the grid look nice

• To create a pattern

• To separate the numbers

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CCSS.3.OA.A.1

Which multiplication is performed in the first space of the grid?

• Four times three

• Four times two

• Six times three

• Six times two

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CCSS.2.NBT.A.3

How is the number eight written in the grid to show its place value?

• As eight

• As zero eight

• As eighty

• As eight hundred

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What do you do with the tens and units in the grid?

• Split them into different boxes

• Ignore them

• Multiply them

• Add them together

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CCSS.3.OA.D.9

How are the diagonal bands summed up in the grid?

• From left to right

• From top to bottom

• One band at a time

• All at once

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What happens if the sum of a diagonal band is more than ten?

• It is subtracted from the next band

• The extra is carried over to the next band

• It is written as is

• It is ignored

How do you read the final answer from the grid?

• By adding all the numbers together

• By reading the numbers outside the grid, down and across

• By looking at the numbers inside the grid

• By multiplying the numbers outside the grid

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CCSS.5.NBT.B.5

What is the final answer for 46 times 23 using the Chinese method?

• 1058

• 1158

• 1258

• 1048

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CCSS.5.NBT.B.5