①17.5÷12.5×1.4
②0.37×2.5×4
③2.47×99+2.47
④0.86×15.6-5.6×0.86
⑤12.5×0.32×0.5
⑥32.9×10.1
>>>>>
气温/℃
12
13
14
15
蟋蟀每分钟叫的次数
63
70
77
84