* *
100以内两位数加减一位数(进位退位)
口算练习题
18+6= 18+8= 6+68= 44-5= 27+7= 28+2= 36+6= 27+8= 23-9= 94-5= 77-8= 60-4= 80-5= 48+5= 49+6= 48+7= 18+7= 50-6= 60-7= 90-8= 50-9= 91-2= 7+56= 9+35= 4+36= 8+49= 42-7= 32-8= 73-8= 83-9= 34-5= 24+6= 15+7= 55+8= 67+5= 48+6= 93-9= 84-6= 46-7= 85-9= 87+3= 76+4= 77+9= 68+9= 69+1= 25-6= 15-7= 65-8=
* *
75-9= 12+9= 61-7= 69+5= 56-7= 28+4= 22-9= 73+7= 58+2= 86+5= 91-8= 28+7= 68+3= 39+4= 47+5= 75+6= 72-7= 42-8= 80-3= 91-5= 94-7= 44+7= 32+8= 84-8= 64-9= 35-6= 95-7= 75-8= 34+6= 43+7= 53+8= 35+7= 89+2= 41-6= 83-4= 76+5= 57+4= 19+5= 37+6= 45+7= 61-8= 24-6= 54-7= 84-8= 34-9= 81+9= 13+8= 96-8= 66-9= 57-8= 87-9= 48-9= 72-2= 45-9= 86-8= 96-2=
* *
24-9= 63+3= 93 -3= 87+10=
18+5= 39 -3=
48-30=
40-2= 84-2=
46-9= 60 -4= 70-5=
43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 11+20= 45 -3= 30+8= 60-7=
25 +4= 36-5= 84 +4= 52-3= 71+9=
88 -4= 76+0= 56 +20= 64+6= 65 +3= 15-3= 30-3=
32 +6= 29-7= 35 +2= 73+4= 25+4=
43 +5= 95-40= 81 -2= 60+8=
39 +10=
76+10=
70+30= 48 -9= 47-8=
52 -4=
43-8=
68-9=
* *
40-2= 20-1= 35-10= 16 +4=
24+6=
27-9= 40 +6= 71+9=
32-4= 62+7= 12 +6= 27+3= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 89 -5= 63+3= 34-2=
50 -4= 11+2= 53 -3= 60+8= 80-7=
32 +4= 26-5= 84 +4= 29-7= 33 +2= 3+40= 15 +4=
23 +5= 37+1= 29 -3= 38-3= 15-4=
14 +6= 18+2= 90 -1= 80-2=
70 -3=
20-4=
30-5= 28 +3= 35+5=
36 +4=
45+5=
48+2= 80 -6=
* *
70-7= 49+3= 72+8= 42-5= 51-5= 56+6= 71-3= 52-6= 41-6= 63+8= 61-4= 35+6= 21-7= 54+7= 45+7= 48+4= 36+7= 49+2= 61-8= 62-9= 63-4= 43-5= 33-6= 64+6= 54+6= 23-7= 51-9= 60-8= 30-9= 11-2= 56+5= 63+7= 49+1= 64+7= 14-7= 84-8= 94-9= 16+5= 18+3= 24+7= 27+5= 28+6= 25-6= 42-3= 52-4= 16+6= 18+5= 27+6= 28+4= 70-7= 86-7= 80-8= 40-9= 51-2= 36+8= 45+6=