Index
A
above and below base method of multiplication
one-hundred
ten
above the base method of multiplication
one-hundred
ten
addition
base-10
checking answers, digit-sum process
decimal numbers
fractions
denominator is factor of other
same denominator
vertically and crosswise method
left-to-right
rapid columnar
three-digit numbers
two-digit numbers
number splitting
all from 9 and last from 10 method of subtraction
ending earlier in problem
starting late in problem
subtracting from power of 10
altered remainders, flag method of division
answers, checking, digit-sum process
approximating percentages
auxiliary fractions
denominator ending in 1 or series of 1’s
denominator ending in 9 or series of 9’s
B
base-10 addition
base-10 subtraction
base ...
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