(BOCORAN) SOAL TES MASUK SMP/MTs‼️PART 1

Summary

In this engaging tutorial, Mr. Leba enthusiastically guides students through key topics for their junior high school entrance exams, despite battling illness. He covers essential math concepts like addition, factors, equivalent fractions, percentages, and geometry, using simple, step-by-step explanations. Mr. Leba encourages students to study seriously and provides practical strategies, such as using factor trees for finding the FPB and KPK, solving word problems, and applying formulas. The session is both educational and motivational, offering useful tips to help students succeed in their exams, all delivered with a positive and encouraging tone.

Takeaways

• 😀 Mr. Leba, despite being sick, enthusiastically teaches math concepts for junior high school exams in Indonesia.
• 😀 The importance of practicing addition with large numbers is demonstrated through examples, such as 14,350 + 28,329 + 6,580.
• 😀 Factor trees are introduced as a method for simplifying numbers, with examples of finding the prime factors of 36, 48, and 60.
• 😀 The concept of equivalent fractions is discussed, using examples like 3/9 and 1/3 to illustrate how fractions can be simplified.
• 😀 The script provides a practical explanation of percentages, converting fractions to decimal form and comparing values.
• 😀 A word problem on multiplication and subtraction demonstrates how to calculate the remaining pens after distributing some.
• 😀 The Least Common Multiple (LCM) is used to solve a problem involving three people swimming every 3, 4, and 6 days, respectively.
• 😀 A simple temperature problem explains how the temperature increases by 2 degrees every 2 minutes when the power goes out.
• 😀 The concept of converting improper fractions to mixed numbers is introduced, with clear steps for solving problems.
• 😀 Various real-life math problems are presented, such as finding the area of a square, calculating the cost of pens, and determining how many children receive cakes from a school distribution.

Q & A

What was the main focus of the video content?

The main focus of the video was helping students prepare for junior high school entrance exams by covering various math problems and concepts, such as addition, multiplication, fractions, and geometric calculations.

How did Mr. Leba explain the addition of the numbers 14,350 + 28,329 + 6,580?

Mr. Leba broke down the addition step by step, starting with adding 14,350 and 28,329, followed by adding 6,580. He emphasized carrying over values when necessary and completing each addition in sequence.

What is the correct way to simplify an improper fraction, according to the video?

To simplify an improper fraction, one should first multiply the numerator by the denominator and then add the numerator. The result is written as a mixed fraction or improper fraction.

How does Mr. Leba use factor trees in the video?

Mr. Leba used factor trees to explain prime factorization for numbers like 36, 48, and 60, showing how to break down numbers by continuously dividing them by prime factors such as 2 and 3.

What concept was explained when discussing equivalent fractions?

Equivalent fractions were explained by simplifying fractions, such as 3/9 being simplified to 1/3. The key idea is that fractions that look different can sometimes represent the same value.

What method was used to solve the problem about Ayu, Berta, and Cindy swimming together?

The Least Common Multiple (LCM) method was used to determine when all three individuals would swim together again. The LCM of their swimming intervals (3, 4, and 6 days) was found to be 12 days, so they would swim together again on April 9th, 2025.

What was the formula used to calculate the area of a triangle in the video?

The formula used to calculate the area of a triangle is: Area = (Base × Height) / 2. Mr. Leba applied this formula with a base of 12 and height of 20, resulting in an area of 120.

What was the reasoning behind the problem involving Mr. Mail distributing cakes?

Mr. Mail bought 8 boxes of cakes, each containing 20 cakes, totaling 160 cakes. After throwing away 10 damaged cakes, 150 cakes remained. Dividing these by 2 (the number of cakes each child received), 75 children received cakes.

How did Mr. Leba explain the conversion of fractions to percentages and decimals?

Mr. Leba demonstrated how to convert fractions into percentages and decimals. For example, 1/4 was converted to 0.25, which is equivalent to 25%. Similarly, 0.40 was explained as 40%.

What was the key concept of the problem related to the ratio of the father’s and mother’s ages?

The key concept was using ratios to solve for unknown values. Given the ratio of the father's and mother's ages as 5:4, and knowing the father's age is 30, the mother's age was found by multiplying 30 by 4/5, resulting in 24 years.