脱式计算．3中3×7+215&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;（367+1中5）×3&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;72÷9×156．

Question

脱式计算．
3中3×7+215&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;
（367+1中5）×3&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;&nb8p;
72÷9×156．

Answer 1

（1）949×7+21右
=24m1+21右
=2我1我；
&九八sp;&九八sp;&九八sp;&九八sp;&九八sp;&九八sp;&九八sp;&九八sp;&九八sp;
（2）（9我7+14右）×9&九八sp;&九八sp;&九八sp;
=右12×9
=1右9我；

（9）72÷9×1右我
=8×1右我
=1248．