(完整版)青岛版三年级数学上册口算题

7X 8-19 =48 - 4=300 X 3 =200 - 4 =310X 3 =930 - 3 =840 - 4 =50 X 6 =720 一 9 =64- 8X 5 =2X 14=60 X 4+