Marvelous Math
Discover the magic of numbers, shapes, and calculations!
Math Game: Quick Calculations
Test your math skills with this fun game!
Score: 0
Multiplication Trick: The 9s Table
Multiply any number by 9 using your fingers!
- Hold up both hands with all fingers extended.
- For 9 × N, count N fingers from the left and fold that finger down.
- The number of fingers to the left of the folded finger is the tens digit.
- The number of fingers to the right is the ones digit.
Example: 9 × 7 = 63 (6 fingers left of the folded 7th finger, 3 fingers to the right)
Division Concept: The Bus Stop Method
Learn an easy way to visualize and perform long division!
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)¯¯¯¯¯¯ (Bus stop shape)
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¯¯
1. Write the divisor outside the "bus stop" and the dividend inside.
2. Divide, subtract, bring down, and repeat!
Addition Trick: Making 10s
Add numbers quickly by making groups of 10!
Example: 8 + 7
- Take 2 from 7 to make 10 with 8: 8 + 2 = 10
- You have 5 left from the 7
- 10 + 5 = 15
This works great for adding multiple numbers too!
Geometry Concept: The Pythagorean Theorem
In a right-angled triangle, the square of the hypotenuse (longest side) is equal to the sum of squares of the other two sides.
a² + b² = c²