文档介绍:口算练****160;2
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2+6= 29-7= 33+2= 3+40
15+4= 23+5= 37+3= 29-3=
38-3= 15-4= 18-2= 30+8=
43+1= 86+2= 70+30+8= 60-7= 25+4=
36-5= 84+4= 60-4= 11+20=
52-3= 71+9= 88-4= 76+0=
70-5= 56+20= 64+6= 65+3=
15-3= 30-3= 93-3= 18+5=
32+6= 29-7= 35+2= 73+4=
87+10= 39-3= 48-30= 81-2=
60+8= 15+4= 25+4= 43+5=
39+10= 76+10= 70+30= 48-9=
47-8= 52-4= 17+3= 12+6=
43-8= 68-9= 40-2= 27-9=
32-4= 41-2= 71+9= 60+8=
38-9= 30-2= 72-2= 66-4=
39-2= 20-9= 39-3= 39+10=
53+5= 35+2= 39-4= 8+50=
40+6= 62+7= 25+4 32+6
89-5= 63+3= 4-2= 87+10=
11+2= 53-3= 60+8= 39-3=
80-7= 26-5= 84+4= 35-10=
29-7= 33+2= 40-2= 73+4=
23+5= 37+1= 29-3= 38-3=
15-4= 53+5= 27-9= 32-4=
18-2= 30+8= 43+1= 86+2=
70+3= 18+7= 30-2= 29-7=
30-2= 72-2= 66-4= 39-2=
20-9= 43-8= 40+6= 35+2=
53+5= 35+2= 39-4= 8+50=
20-1= 35-10= 29-7= 41-2
= = 47+9=
43+5= 48-30= 95-
40= 68-9=
81-2= 76+10= 70+30
=
48-9= 47-8= 52-4= 50-
4= 11+2= 60+8=
80-7= 33+2= 3
+40=
16+9= 5+18= 36+6=
48+8= 35+8=
4+19= 4+37= 29+4= 36+6=
18+7= 47+9=
75+5= 23+7= 26+8= 32+8=
16+9= 50+8=
91+8= 24+6= 5+37= 44+7=
67+9= 15-4=
39+1= 37+4= 78+3= 27+6=
39+8= 68+5=
9+25= 85+6= 92+4= 86+2=
48+7= 39+9=
2+38= 56+8= 36+5= 35+6=
46+9= 9+25=
23+8= 4