standard_description: Identify shapes as two-dimensional (lying in a plane, “flat”) or three-dimensional (“solid”).
problem_activity: Problem 3
Pre-unit
Match the pictures with the expressions.
A:
[IMG]
B:
[IMG]
C:
[IMG]
1: \(\hspace{1.5cm}6+2\)
2: \(\hspace{1.5cm}5+3\)
3: \(\hspace{1.5cm}8-3\)


aligns: no