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Dividing a 2-digit number by 7 1/2
Select a 2-digit number.
Multiply it by 4 (or by 2 twice).
Divide by 3.
Move the decimal point 1 place to the left.
Example:
The 2-digit number chosen to multiply by 7 1/2
is 42.
Multiply by 4: 42 x 4 = 168
Divide by 3: 168/3 = 56
Move the decimal point 1 place to the left: 5.6
So 42 divided by 7 1/2 = 5.6.
See the pattern?
The 2-digit number chosen to multiply by 7 1/2
is 93.
Multiply by 4: 93 x 4 = 360 + 12 = 372
Divide by 3: 372/3 = 124
Move the decimal point 1 place to the left: 12.4
So 93 divided by 7 1/2 = 12.4.
Practice and you will soon be cranking out these quotients
with speed and accuracy.