Our Class Mental Math Number Talks Strategies:
Multiplication and Division
Name:
Repeated
Addition or
Skip Counting
What it is:
Adding the same
number again
and again in
order to find the
answer to a
multiplication
problem
Making
Landmark or
Friendly
Numbers
Making one of the
numbers a
friendly number
and multiplying.
Subtract the
(group) amount
you added in
Partial
Products
Use the break
apart strategy to
multiply and add
the partial
products
Doubling and
Halving
You double one
factor and half
the other.
What it Looks Like:
19 X 2
Breaking
Factors into
Smaller
Factors
Breaking down at
least one of the
factors into
smaller factors
and multiplying
Repeated
Subtraction or
Sharing
Subtracting the
divisor from the
dividend until you
have zero (or a
number smaller
than the divisor)
Division
Partial
Quotients
Division that
maintains the
correct place
value terms
Division
Multiplying Up
Division
Provides access
to division by
building on the
students’ strength
in multiplication
often using an
open array model
132 divided by 6
R. Williams 2016