Triangles and Squares

24×86= 2064

2064/8=258

3/4 of 24 = 18 + 4= 22, 2 left over to make 24.  There are 2 green cubes.

2753 x 2 or 2753+2753 = 5506

Circles

3/4 of the class is 18.
18/3 = 6  

1/4 of the class is 6.

18+6= 24 children in the class, 18 girls and 6 boys.

27 x2  or 27+27 =54