MATHS TRICKS
Presentation
•
Mathematics
•
8th - 12th Grade
•
Hard
ADITYA 8-C
Used 2+ times
FREE Resource
3 Slides • 0 Questions
1
MATHS TRICKS
TRICK NO . 1
Squaring Of A Number Whose Unit Digit Is 5
Find (55) ² = ?
Step 1. 55 x 55 = . . 25 (end terms)
Step 2. 5x (5+1) = 30
So our answer will be 3025.
2
Multiply a Number By 5
Take any number, and depending on its even or odd nature, divide the number by 2.
Even Number:
2464 x 5 =?
Step 1. 2464 / 2 = 1232
Step 2. add 0
The answer will be 2464 x 5 = 12320
Odd Number:
3775 x 5Step
1. Odd number; so ( 3775 - 1) / 2 = 1887
Step 2. As it is an odd number, so instead of 0 we will put 5
The answer will be 3775 x 5 = 18875
3
Dividing A Large Number By 5
1st step. Multiply the number by 2
2nd step: Move the decimal point to left.
3rd step: Left side of the decimal point is your answer.
For example: 245 / 5 =?
Step 1. 245 * 2 = 490
Step 2. Move the decimal: 49.0 or just 49
MATHS TRICKS
TRICK NO . 1
Squaring Of A Number Whose Unit Digit Is 5
Find (55) ² = ?
Step 1. 55 x 55 = . . 25 (end terms)
Step 2. 5x (5+1) = 30
So our answer will be 3025.
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