Слайд 2Addition
Plus (one plus one equals two)
Add (add one to one
and there are
two in all)
Слайд 3Subtraction
Minus (four minus one equals three)
Take away (take away one
from four and there are three in all)
Слайд 4Word Problems
There were seven apples on the table but Chris
ate three. How many apples are left?
Слайд 5Word Problems
Greg has twenty two cats at home. He found
six more cats on the street today. How many cats
will he have if he takes the five cats to his home?
Слайд 6Word Problems
Meg had fifteen pairs of shoes at home before.
Yesterday, her dog was biting four of them. How many
pairs of shoes does she have now?
Слайд 7Word Problems
Kate had 33RMB this morning. Peter gave her 49RMB
at noon. How much money does she have to eat
lunch?
Слайд 8Word Problems
Nancy used to have twelve pencils but her classmate
stole two of them. How many pencils does she have
left?
Слайд 9Word Problems
There were twenty eight students in the classroom before.
Four new students joined the class today. How many students
does the class have in all?
Слайд 10Word Problems
Jake and Lucy need to buy a book. The
book costs thirty dollars. If Lucy has thirteen dollars, then
how much money does Jake need to buy the book?