Você ainda Soma Errado? - 3 Macetes para somar de Cabeça bem RÁPIDO

Summary

In this video, a math instructor shares effective strategies for faster addition, specifically tailored for students preparing for the ENEM exam. Key tips include using base numbers like 1 and 10 to simplify sums, breaking large numbers into manageable parts, and practicing mental math by adding from left to right. The instructor emphasizes efficient mental calculations to save time, particularly when tackling multi-digit sums. The techniques help students improve speed and accuracy, making them more confident during time-sensitive exams. For further learning, the instructor offers a unique, practical math course designed for ENEM preparation.

Takeaways

• 😀 Use base numbers like 1 and 10 to simplify addition and speed up calculations.
• 😀 Recognize how numbers can be broken down into smaller, more manageable components.
• 😀 Try doing mental math from left to right instead of the traditional right to left approach.
• 😀 Practice adding numbers that are close to multiples of 10 for easier calculations.
• 😀 Visualize numbers as combinations that can be adjusted to form round numbers like 10 or 50.
• 😀 Take advantage of small tricks, such as borrowing or adjusting numbers to create easier sums.
• 😀 Use context-based examples to practice sums, like adding numbers from your daily life.
• 😀 Focus on speed and efficiency when solving problems, especially for time-sensitive exams.
• 😀 Try solving problems in a way that feels more natural to your thinking style to avoid confusion.
• 😀 Regular practice with these techniques can improve both speed and accuracy in mathematical calculations.

Q & A

What is the main focus of the video?

The main focus of the video is to teach math shortcuts for addition, helping students perform quick mental calculations, especially in exam settings like the ENEM.

How does the speaker suggest simplifying addition problems?

The speaker suggests using base numbers like 1 and 10 to break down addition problems into simpler parts, making mental calculations faster.

What is the strategy for adding numbers like 7 + 8?

For 7 + 8, the strategy is to recognize that 8 is 2 away from 10. By borrowing that 2, you can add 7 + 10 first, then add the remaining 5, which results in 15.

What are the base numbers that the speaker focuses on for simplifying addition?

The base numbers the speaker focuses on are 1 and 10, as they help to easily adjust and simplify sums during mental math.

Why does the speaker prefer starting addition from left to right?

The speaker prefers starting from left to right because it matches the natural flow of our cognitive processes, making it easier to calculate and adjust numbers mentally.

How can you handle larger numbers using the methods taught in the video?

For larger numbers, the speaker suggests breaking them into smaller parts, such as separating tens and units, and simplifying the process by adding the components step-by-step.

What is a common mistake people make when adding large numbers, according to the speaker?

A common mistake people make when adding large numbers is trying to add from right to left, which can complicate the calculation. Instead, starting from left to right is more efficient.

What advice does the speaker give for practicing mental addition?

The speaker advises practicing with various numbers and applying the shortcuts taught in the video. The more you practice, the quicker and more accurate you'll become at mental addition.

How does the speaker suggest simplifying the addition of multiple numbers at once?

The speaker suggests grouping numbers that sum to nice round values, like 40 or 30, and then adding those groups together to make the process faster and more efficient.

What is the speaker's method for handling sums in exam settings like the ENEM?

In exam settings like the ENEM, the speaker recommends quickly spotting sums that can be simplified with base numbers (like 10), grouping numbers together efficiently, and doing the calculations in your head rather than on paper.