①56+39=
②74-25=
③87-28-36=
④46+34-27=
13﹣4=
69+1=
51﹣9=
40﹣20﹣20=
5+40=
24+5=
37﹣5=
39﹣(14+6)=
64﹣30=
28+30=
8+24=
45+(10﹣7)=
□○□=□
①45+28=
②55-17=
③63+25=
④86-53=
⑤79-16-18=
⑥25+52+17=
⑦28+61-49=
①43+26=
②26+54=
③63-32=
④83-78=
⑤45+36=
⑥45+28+17=
⑦91-47-15=
⑧45+35-43=
①79-53=
②34+37=
③91-42=
④58+22-43=