11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4=
35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
奥数网 - 小学一年级
62-8= 81-3= 84-8= 62-8= 42+4=
33+6= 5+39= 27-6= 74-20= 21+9=
51-4= 8+56= 56-9= 36-6= 63-50=
48+5= 53+9= 79+6= 52-8= 6+54=
50-9= 60+4= 5+47= 26+8= 50-5=
44-9= 37-8= 71-6= 5+37= 46+3=
55-5= 92-4= 41-9= 94-60= 43+6=
5+49= 83-8= 23+4= 6+33= 95-70=
53+8= 61-7= 46+6= 69-8= 73+8=
62-20= 32+8= 74-6= 56+4= 34+50=
55+2= 57-4= 3+54= 10+78= 61-4=
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