How To Check New Calculator While Buying ?

What is a Calculator ?

A Calculator provides simple and advanced mathematical functions

Basic calculations such as addition, subtraction, multiplication, and division.
Scientific Calculator used operations for trigonometric, logarithmic, and exponential functions.

Why We Need to Check While Buying ?

Calculator is use for mathematical and Scientific so we need result will be accurate.

History

The original calculator was the abacus, developed in China in the 9th century. The young French mathematician Blaise Pascal (1623 – 1662) invented the first adding machine in 1642, it was a clever device driven by gears and capable of performing mechanical addition and subtraction.

How to Test Accuracy of Calculator ?

Test 1.

Enter 12345679 Skip 8.
Now Multiple with 45.
12345679*45=555555555 All 5.

Test 2.

Enter 12345679 Skip 8
Now Multiple With 8
12345679*8=98765432

Test 3.

Enter 12345679 Skip 8
Now Multiple With 9
12345679*9=11111111 ALL 1

Test 4 :

370 Number is Magic Number

Concept 370*(3*N)=NNN0

370*3 = 1110
370*6 = 2220
370*9 = 3330
370*12 = 4440
370*15 = 5550
370*30 = 11100

Test 5.

1/9 = 0.11111 All 1

Test 6.

1/81 = 0.012345678901

Test 7.

22/7 = 3.14285714285

Test 8.

For Only Casio Calculators Press and Hold 1 3 7 9 and Then Press AC Button

On Screen CASIO Shown.

Bonus Trick

Type 0.7734 Rotate Screen. Up Side Down. HELLO Seen.

Thanks for Supporting I Wish You Like It,Please Comment Down For Any Other Test or Trick You want to Share with Us.