iMath Mission A

99 + 18, 99 + 26, 199 + 56, 199 + 124, 199 + 217... ..., can you tell me the answers within 5 seconds? Do you know there is a special way to calculate them? Try to find it out through this exciting shooting game. You can improve your speed and accuracy. Lets fight against the Ice Monster together!

99 + 18, 99 + 26, 199 + 56, 199 + 124, 199 + 217... ..., 你能在 5 秒內說出這些算式的答案嗎？運用一個特別的計算方法，便可以極速地得出答案。試試從這個有趣而刺激的射擊遊戲中找出來。100% 提升你的心算速度，齊來消滅冰山怪獸吧！