Posts by Rakesh Pawan Kalyan
to multiply by
Trick
2
add the number to itself (example 2×9
to multiply by Trick 2 add the number to itself (example 2×9 = 9+9) 5 the last digit goes 5, 0, 5, 0, ... is always half of 10× (Example: 5x6 = ...
to multiply by Trick 2 add the number to itself (example 2×9 = 9+9) 5 the last digit goes 5, 0, 5, 0, ... is always half of 10× (Example: 5x6 = ...
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