VOCABULARY
Chapter 2
Understanding Addition
VOCABULARY
DEFINITION
EXAMPLE
add (adding, addition)
To join together sets to find the total or
sum.
2+3=5
addend
Any numbers or quantities being added
together.
2+3
(2 and 3 are addends)
addition sentence
An expression using numbers and the
+ and = sign.
4 + 6 = 10
equals (=)
Having the same value as or is the
same as.
4 + 6 = 10
= is the equal sign
plus (+)
A symbol to show addition.
+ is the plus sign
sum
The answer to an addition problem.
7+1=8
8 is the sum
zero
The number zero equals none or
nothing.
0
Key Words and Catch Phrases for ADDITION Word Problems
1.
2.
3.
4.
5.
6.
add
altogether or all together
both
in all
sum
total