First graders will need to learn addition facts from 0+0 to 10+10. They should understand various math strategies to help them solve more quickly, and have the addition math facts to 20 memorized, without the need to count, by the end of the 1st grade.
In kindergarten, kids were introduced to the concept of addition and began learning math facts up to 10.
In first grade, children will be introduced to the + sign and learn addition facts up to 20. They will learn many different strategies for remembering these math facts, and will move onto harder addition skills: adding 2-digit numbers, adding columns of three or more numbers, and adding money.
In second grade, children will add larger numbers and learn regrouping.
If lifelong math learning were a house, addition math facts would be the strong base of its foundation. When addition skills are strong, and addition facts become automatic, everything that comes after-subtraction, multiplication, computation skills-will become much easier and smoother.
Many first graders are ok adding numbers until they run out of fingers; in a problem like 6+8, once they get to 10 they are not sure what to do next. Most need exposure to several kinds of addition strategies, but without plenty of hands-on practice, the strategies themselves can be confusing. Some kids might need a lot more time counting and adding with objects before the written addition makes sense to them; others will need to say all problems out loud.
Some children will have a very hard time memorizing math facts, especially if they are presented mainly through drill and flash cards. In order to make addition facts accessible to every child, teachers and parents may need to be quite creative in finding new ways to teach and practice them.
If addition really is not posing much of a problem for your child and you need to keep her challenged, try these: