Mastering the GRID Method for Multiplication

This video tutorial demonstrates two written methods for multiplying a one-digit number by a two-digit number: the standard written method and the grid method. The instructor explains each method step-by-step, using the example of multiplying 28 by 4. The video emphasizes the importance of knowing times tables and double-checking work to ensure accuracy. The tutorial concludes by encouraging viewers to use both methods to verify their answers.

What is the main focus of the video?

• Adding two-digit numbers

• Multiplying a one-digit number by a two-digit number

• Subtracting one-digit numbers

• Dividing two-digit numbers

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Which method is likely to be more familiar to you?

• Grid method

• Using a calculator

• Standard written method

• Mental math

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CCSS.4.NBT.B.5

In the standard written method, what do you multiply first?

• Tens by tens

• Tens by units

• Units by units

• Units by tens

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CCSS.4.NBT.B.5

What is the first step in the grid method?

• Adding the results

• Writing the numbers in columns

• Multiplying units

• Drawing a grid

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CCSS.4.NBT.B.5

What is 4 times 8 in the example provided?

• 36

• 32

• 28

• 24

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CCSS.3.OA.A.1

Where should you write the digit 2 in the result of 4 times 8?

• In the tens column

• In the thousands column

• In the units column

• In the hundreds column

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CCSS.4.NBT.B.6

What is the result of 4 times 20?

• 90

• 60

• 70

• 80

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CCSS.3.NBT.A.3

What mistake did the narrator correct during the example?

• Using the wrong method

• Writing in the wrong column

• Multiplying the wrong numbers

• Forgetting to add the tens

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the final answer for 28 times 4 using the standard method?

• 132

• 122

• 112

• 102

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CCSS.5.NBT.B.5

Why is it important to double-check your work?

• To use both methods

• To impress others

• To ensure accuracy

• To save time

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CCSS.RI.7.3

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.9-10.3

CCSS.RI.9-10.5