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36+29= 26-7= 32-6= 5+69= 7+67=
20+30+20= 50-20-10= 61-(47-7)=
29-29+51= 15+85-96= 65-(45-40)=
33+20-40= 78 +(82-80)= 78 + 2 - 60 =
36+40= 82-9= 69-6= 40+60=
12-5= 40+8= 50+24= 6+72=
4+58= 71-10= 91-5= 80-8=
55+4= 6+26= 3+57= 13-8+30=
100-30= 15-4= 14-7= 25+8-30=
①45+37=
②90-55=
③22+38=
④72-39=
⑤57-32=
⑥9+46=
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