①57+24=
②60-26=
③74-37=
④24+37+23=
⑤74-26+18=
⑥80-(18+26)=
35+48=
51-7=
59+31=
72-27=
9×6+8=
4×8-9=
5×7+35=
6×8-30=
9×9=
2×8=
3×4=
8×7=
5×6=
8×9=
7×5=
6×3=
2×9=
8×5=
6×6=
6×7=
2×5=
4×6=
5+5=
9×4﹣24=
8×8+8=
70﹣5×5=
2×7= 6×3= 4×9= 9×2=
7×8= 9×7= 6×6= 6×8=
6×3+6= 7×5+7= 4×9+9=
7×8-8= 1×9-9= 8×7-7=
①35+58=
②43-25=
③29+35+16=
④83-8-60=
⑤35+28-47=
⑥71-(55-42)=
①37+28=
②84-56=
③60-48=
④47+(28-19)=
⑤92-36-29=
⑥73-(45-17)=
40+25﹣9=
45+19+18=
90﹣60﹣28=