100以内两位数不退位减法（2023-10-22）

100以内两位数不退位减法（2023-10-22）：34-11= 79-58= 54-43= 75-70= 99-20= 86-60= 69-22= 48-35= 98-66= 97-25= 86-35= 82-72= 34-13= 86-12= 13-10= 56-14= 48-12= 54-20= 78-60= 18-15= 99-22= 95-33= 59-28= 98-44= 27-11= 23-22= 84-43= 77-41= 45-24= 46-43= 96-52= 46-22= 69-18= 65-54= 86-81= 49-10= 38-20= 97-71= 59-47= 74-50= 98-46= 93-83= 49-35= 78-14= 51-30= 88-10= 84-22= 42-11= 67-26= 26-16= 69-20= 65-31= 38-22= 95-54= 88...