①54-39=
②65+18=
③46+25-34=
④35+17+26=
⑤89-(26+17)=
⑥88-69+48=
2×2= 3×5= 4×5= 6×8= 7×9=
12÷6= 24÷3= 36÷4= 30÷5= 49÷7=
①36+27+32=
②70-29-24=
③95-57+30=
④33+18-25=
①29+48=
②76-18=
③60-24=
④80-17+21=
⑤72-22-17=
⑥49+(61-34)=
①36+49=
②84-27=
③80-26=
④27+18+36=
⑤39+(43-16)=
⑥98-(50-27)=