Before you begin the lesson, take some time to practice your math skills.
The number x and -
d-2-1/2 are additive inverses. Drag and drop x and -2½ to
to the correct position on the number line. Drag the label Sum to the sum of
d-2 1/2-
x and-
-51-4
X
1-3
1-2
72
-21/12
4
FIN
1-1 1 0
2
Sum
+
1 1
1112
2117
1
12 13
N
FIN
+++++
14 15
4
3
112