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Super Shapes

Stage: 2 Short Challenge Level: Challenge Level:1

Each of the following shapes has a value:

 

 

 

green triangle $= 7$ orange rectangle. $= 17$ red circle. $= \; ?$

The value of the circle changes in each of the following problems.
Can you discover its value in each problem, if the values of the shapes are being added together?

(a) $= 25$
(b) $= 51$
(c) $=136$
(d) $=48$
(e) $=100$

You could print off this sheet of the problem.