Vocabulary
the answer to an addition problem
the Sum
22+27
49
50+ ____ = 100
50
Sam sees 26 seashells on the beach. His sister sees 55 seashells on the beach. How many seashells did they see altogether?
81 seashells
the numbers you add together
Addends
100 + ____ = 135
35
This month, Benny read 17 books. Carl read 22 books. How many books did they read in all?
39 books
when you exchange 10 ones for a ten
Regroup
61 + ____ = 101
40
combine/fuse two or more groups/objects to get the total
addition
____ + 80 = 180
100
a number with tens and ones
a two-digit number
80 + 20 + ____ = 169
69