Number Shapes Challenge 1

In this group of equations, the three shapes always stand for the same numbers. 

In this group, what  is the value of                   and                    ?

+              = 3	+      =
+                  = 6	=  4

Click on the number you think each shape stands for:

Be sure to close the answer box each time you click.

Now you know how it works, so try the next one!

Number Shapes Challenge 2

In this group of equations, the three shapes always stand for the same numbers. 

In this group, what is the value of                      and                 and                ?

Click on the number you think each shape stands for:

Be sure to close the answer box each time you click.

1   2   3   4   5   6   7

1   2   3   4   5  6   7

1   2   3   4   5   6   7

Try some more Mystery Numbers!

from Get It Together•EQUALS, Lawrence Hall of Science, ©1989 The Regents of the University of California