3．直接写得数．
| 906÷3= | 3×500= | 170÷5= |
| 306×0= | 405÷5= | 916÷8= |
| 209÷7 | 0÷180= | 36×20= |
2．直接写得数．
| 25×74= | 21×31= | 37×11= | 25×8= |
| 68÷4= | 840÷4= | 180÷3= | 480÷3= |
1．直接写得数．
0 155994 156002 156008 156012 156018 156020 156024 156030 156032 156038 156044 156048 156050 156054 156060 156062 156068 156072 156074 156078 156080 156084 156086 156088 156089 156090 156092 156093 156094 156096 156098 156102 156104 156108 156110 156114 156120 156122 156128 156132 156134 156138 156144 156150 156152 156158 156162 156164 156170 156174 156180 156188 199269
| 30×4= | 1500÷5= | 4000÷5= | 96÷3= |
| 304÷2= | 720-18= | 31×42= | 31×29= |
”．