Froggy Jump; Level 2

Oh, Gosh! Freddy the Frog is stuck again! The lilly pads are unstabble and making him sink into the water. Help Freddy cross the sinking lilly pads once more. Beware, the addition and subtraction questions are different and a little bit more challenging. Answer incorrectly or not answer in enough time, and Freddy the frog will sink! Can you help Freddy the Frog escape the sinking lilly pads this time?