73-5= 37+0= 65+3= 16-5= 77+6=
98-4= 76-5= 22-8= 24-2= 86+3=
83+9= 97-2= 44+8= 41+8= 86-7=
85-3= 31+3= 60+7= 37-0= 17-6=
67-4= 60+7= 12-6= 14+6= 14+5=
51-5= 40+9= 13+2= 69-4= 16-2=
36+9= 53-0= 84+4= 40-3= 70-4=
30+8= 61-7= 44-6= 26-6= 93+6=
65+4= 87+3= 96-6= 14+4= 80-3=
53+3= 75+7= 33-4= 61+5= 32+9=
40-7= 97-9= 62+8= 66-0= 72-3=
51-1= 33+7= 13+3= 89+8= 73-4=
一年级下册数学三步口算题
三步口算题应该是1十1二2,2十2二4,3+3=6