Shortcut Method for Multiplying Two-Digit Numbers

The video introduces a shortcut for multiplying two-digit numbers, demonstrated through examples such as 13 times 26, 12 times 42, and 23 times 46. The method involves multiplying digits, crisscrossing, and adjusting for two-digit results. The video concludes with a prompt to subscribe for daily math and science content.

What is the first step in the shortcut method for multiplying two-digit numbers?

• Multiply the last digits of both numbers

• Subtract the digits of both numbers

• Multiply the first digits of both numbers

• Add the digits of both numbers

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CCSS.4.NBT.B.5

In the example 13 times 26, what is the result of the crisscross multiplication step?

• 14

• 10

• 12

• 8

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CCSS.2.NBT.B.5

What do you do if you get a two-digit number in any step of the shortcut method?

• Add the digits together

• Ignore the second digit

• Subtract the second digit from the first

• Carry over the first digit to the next column

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CCSS.4.NBT.B.5

In the example 12 times 42, what is the final result after applying the shortcut method?

• 402

• 512

• 420

• 504

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CCSS.4.NBT.B.5

What is the result of the crisscross multiplication step in the example 23 times 46?

• 20

• 26

• 22

• 24

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After carrying over digits in the example 23 times 46, what is the final result?

• 1078

• 1068

• 1048

• 1058

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CCSS.5.NBT.B.5

What is the main advantage of using the shortcut method for multiplying two-digit numbers?

• It is faster and requires less mental calculation

• It is more accurate than traditional methods

• It is easier to remember

• It works for all types of numbers

How often does Memory Math upload new math and science videos?

• Once a week

• Every day

• Every month

• Twice a week

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What should you do after learning the shortcut method for multiplying two-digit numbers?

• Practice it regularly

• Share it with friends

• Use it only for exams

• Forget about it

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