Definitions
What does the word addition mean?
Two or more numbers added together to produce a sum
29 + x = 37
8
x -12 =22
34
8 + 2 + 11 =
21
What does the word subtraction mean?
The process or skill of taking one number or amount away from another
x + 14 = 23
9
19 - x = 13
6
5+6+8=?
20
What is a number sentence?
ADDENDS added together that produce a sum ex. 5+5=10
26 + 20 = x
46
24 - x =16
8
8+x=34
26
What is a story problem?
A story problem is a story that has numbers in it. In a story problem we are trying to figure out the missing number.
20 + x = 44
24
15+6=
31
37 - x = 22
15
9 + 9 - 6 =
12
What is a strategy?
A strategy is how you solve and equation.
x + 17= 32
15
34+14
48
x - 6 =34
40
24 + 3 - 16 =
11