Froggy Jumps

This poor froggy really, really needs your help for crossing the lake without getting herself wet! She's relying on your skills as a little mathematician, so put your mind to work and give the correct answers to all those math problems suggested to you here! All those additions, subtractions and other math operations might be some true brain teasers for you, but make sure you stay focused and pick the right water lilies, avoiding the risk that your froggy little friend should lend into the water! Enjoy!