72﹣(25+17)=
80﹣38﹣25=
38+25+17=
13+5= 22+6= 35+4=
11+22= 36+13= 41+8=
32+13= 15+4= 81+5=
72+6= 14+25= 36+20=
4+45= 13 +4= 8+31=
32+16= 50+6= 42+30=
①6×7+7 =
②6×9+7 =
③8×9-24 =
④8×3+8 =
⑤9×5-25 =
⑥5×8+27 =
38+29+30 87-30-42 68-(46-24)
8×<60 42>×6 27>4×
<36+14 75>9× 7×7>