①4+27=
②46-29=
③48+25=
④70-26=
⑤71-4-60=
⑥46+20-19=
⑦45-(24-6)=
35+6=
28-22=
90+6=
77-26=
66-6=
45+5=
71-6=
93+4=
50+18-8=
78-65+20=
4×8= 5×7= 6×9= 7×9= 4×4=
2×5= 7×2= 8×6= 5×5= 3×8=
3×6= 9×3= 0×8= 9×9= 6×6=
①25+36+18=
②74-37-29=
③92-17+23=
④56+27-32=
游乐场
营业时间:9∶30—17:30
(团体票人数≥11人)
0.4÷0.2= 1÷= 406﹣299= a﹣a×0=