Froggy Jumps FROGGY THE MATHALINO!Versión en línea Froggy wants to cross the river, but he can only jump on the stones if we solve the math problems mentally. por Katie Natividad 1 55 + 15 a 70 b 60 c 50 2 25 - 12 a 12 b 13 c 14 3 60 - 30 a 30 b 25 c 40 4 155 + 60 a 210 b 220 c 215 5 6 × 6 a 46 b 36 c 30 6 8 × 8 a 64 b 54 c 63