1.sumå,
2ãdifferenceå·®,
3ãproduct积 ,
4ãquotientå
å¦å¤åç»ä½ è¡¥å
å 个ä¹æ¯å¸¸ç¨çï¼
1.surface area
表é¢ç§¯ï¼volumeä½ç§¯ï¼the length of the sideè¾¹é¿,lateral area 侧é¢ç§¯,altitudeé«
2.rectangleé¿æ¹å½¢,squareæ£æ¹å½¢,circular cylinder
åæ±ä½,coneåé¥, triangle
ä¸è§å½¢,polygon
å¤è¾¹å½¢,rectangular solidé¿æ¹ä½,cubeç«æ¹ä½,circleå
3.addï¼pluså ,subtractå ,multiply,timesä¹ ,divideé¤