M&Ms:The Lost Formulas only math

Help:\r
Level 1 ~ Level 8 all course.\r
Level 1.Get out of Town\r
Level 2.Milk Chocolate\r
Level 3.Oh Chute!\r
Level 4.Candy Colors\r
Level 5.Stampin and Sortin\r
Level 6.Pack It In\r
Level 7.Warehouse Woes\r
Level 8.The Shoking Truch