Complete the equations to get to level 3
Complete the equations to get to level 5
Complete the equations to get to level 10
Complete the equations to get to level 15
Complete the equations to get to level 20
Complete the equations to get to level 30
Complete the equations to get to level 40
Complete the equations to get to level 50
Complete the equations to get to level 60
Complete the equations to get to level 70
Complete the equations to get to level 80
Complete the equations to get to level 90
Complete the equations to get to level 100
Complete the equations to get to level 125
Complete the equations to get to level 150