Subtract
Sustraer, restar
My son can add just fine, but he still doesn't know how to subtract.
Mi hijo puede sumar bien, pero todavía no sabe cómo restar.
Said
sail
sale
same
save
say
scale
scared
schedule
school
science
scientist
sea
Search
second
secret
section
see
seeds
seem
self
sent
sentence
separate
serve
set
seven
several
shape
she
ship
shirt
shoes
short
should
shouted
show
sick
side
sign
simple
since
sing
single
sister
sit
site
six
size
skateboard
skills
skin
sky
sleep
slowly
small
smile
snow
so
sofa
soft
soil
soldier
solve
some
someone
something
sometimes
son
song
soon
sound
south
southbound
space
speak
special
speed
spell
spoon
spouse
spring
square
stairs
stairway
stand
stars
start
state
statement
stay
step
stick
still
stone
stood
stop
store
storm
story
stove
straight
strange
street
strong
students
study
subject
Subtract
subway
such
suddenly
sum
summer
sun
supermarket
supper
supplies
suppose
sure
surface
surprise
switch
symbols
system