小学一年级100以内加减混合[3连加减]口算题

91 + 6 + 1 =77 - 51 - 11 =9 - 9 + 30 =41 + 33 - 61 =60 - 49 - 8 =13 + 30 + 13 =29 + 32 - 34 =41 + 41