Trik Mudah Cara Berhitung Cepat - JURUS 5

Summary

In this educational video, Kak Narita introduces the 'Jurus Lima' method, a fun and interactive way to teach children how to add large numbers using their fingers. This method replaces traditional strategies by using finger movements—'tempel lempar' (stick and throw)—to break down complex additions like 5 + 6 or 6 + 7. Kak Narita demonstrates how to 'open' additional fingers to adjust the numbers and find the sum, making math more accessible for young learners. The video ensures a clear, engaging, and practical approach to mastering basic addition.

Takeaways

• 😀 The video introduces 'Jurus Lima', a new method for adding larger numbers without using traditional 'small and big sibling' concepts.
• 😀 Jurus Lima uses a 'finger attachment and throw' (tempel-lempar) technique to make addition easier for children.
• 😀 The method is especially useful for adding numbers 5 and above, e.g., 5+6, 6+7, 7+7, 6+8.
• 😀 Traditional methods like 'saudara besar' do not always work for numbers greater than 5, which is why Jurus Lima is needed.
• 😀 Step 1: Open fingers to represent the first number in the addition.
• 😀 Step 2: Open additional fingers to match the second number if necessary.
• 😀 Step 3: Attach (tempel) the newly opened fingers and then release (lempar) them.
• 😀 Step 4: Open 10 fingers to finalize the sum if the total exceeds 10.
• 😀 The video provides multiple examples, including 5+6=11, 6+7=13, 61+8=84, and 32+16=72, demonstrating the method in practice.
• 😀 Key tip: Only the new fingers are attached; if fingers are already counted, they are not added again.
• 😀 Jurus Lima simplifies addition of large numbers and prevents confusion, making it easier for children to understand and calculate.

Q & A

What is the main concept introduced in the script for teaching addition?

The main concept introduced is the 'finger attachment' or 'tempel lempar' method, where fingers are used to visually represent numbers and help with addition without relying on traditional counting methods like small or big siblings.

When should the 'jurus lima' (five method) be used?

The 'jurus lima' method should be used when adding two numbers greater than or equal to 5, such as 5 + 6, 6 + 7, etc.

How does the 'jurus lima' method work for adding 5 + 6?

To add 5 + 6, first open 5, then add 1 more to make it 6. Attach the 6 to the number being added, then 'throw' or release the fingers and open 10 to arrive at the answer, which is 11.

Can the 'jurus lima' method be used for all large numbers added together?

No, the 'jurus lima' method is specifically for cases where one number is 5 or higher and the sum involves numbers like 5 + 6, 6 + 7, etc. It is not suitable for all large numbers, particularly when the numbers are smaller than 5.

What is the purpose of 'throwing' the fingers after attaching them in the 'jurus lima' method?

'Throwing' the fingers or releasing them represents completing the addition of the numbers, essentially moving on from the physical representation and transitioning to the result, which is then adjusted to the next multiple of 10 if necessary.

What happens when the fingers are not enough to represent the numbers being added?

When the fingers are not enough, additional fingers are added to represent the correct number, increasing the total number of fingers as necessary to match the sum.

What is the final step after attaching and throwing the fingers in the 'jurus lima' method?

The final step is to open the number 10, which represents completing the addition process. This is done after the fingers are 'thrown' and helps finalize the sum.

How does the method handle adding 6 + 7?

For 6 + 7, open 6 and add 2 more fingers to make it 7. Then, attach the 7 to the number being added and 'throw' the fingers, finalizing with the sum of 13 after opening 10.

What should you do if you encounter an addition like 7 + 7 in the method?

For 7 + 7, you would need to open more fingers to adjust the sum. In this case, you would open 2 more fingers to turn the 5 into 7, then proceed with the method as usual to reach the sum.

Why does the method not work with smaller numbers like 5 + 5 or 6 + 6?

The 'jurus lima' method is designed for numbers 5 and above. Smaller numbers like 5 + 5 or 6 + 6 do not require the attachment and throwing of fingers because they can be added using traditional methods or simpler counting.