[Speed Math] MULTIPLYING NUMBERS WITH COMMON LAST DIGITS

Here’s an example of a SPEED MATH shortcut for MULTIPLYING NUMBERS WITH COMMON LAST DIGITS : (Mul) LDSdx from the MULTIPLICATION category.

When can I use this method?

For multiplying any 2-digit number with another 2-digit number such that the last digit of the multiplier and multiplicand are same. The first digits can be different.

For multiplying any 3-digit number with another 3-digit number such that the last digit of the multiplier and multiplicand are same. The initial 2 digits can be different.

You can also use this method to multiply numbers with unequal number of digits, i.e. multiplying a 2-digit number with a 3-digit number such that the last digit of the multiplier and multiplicand are the same.

 

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Download Practice sheet for   MULTIPLYING NUMBERS WITH COMMON LAST DIGITS

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Notes –

1. Notice the way the products are added.

Related Shortcuts –

Multiplying Numbers with Common Initial digits: (Mul) FDSdx

 

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