小学一年级口算题:一年级数学口算题89!
62-12-46= 66-38-22= 65-44-14= 88-21-52=
86-57-28= 95-60-21= 87-23-4= 60-10-13=
99-63-29= 59-8-24= 99-26-27= 66-30-27=
19-3-10= 70-26-43= 83-50-14= 41-23-18=
82-71-10= 44-12-21= 89-74-5= 97-77-10=
65-41-18= 95-47-18= 86-19-36= 33-15-10=
83-31-42= 87-25-11= 62-6-50= 93-13-24=
100-22-0= 54-34-3= 61-11-2= 100-13-79=
91-68-1= 77-24-20= 52-16-24= 53-3-15=
96-29-40= 46-7-11= 83-28-44= 38-17-2=