1. (√)(√)( )(√) ( )(√)(√)(√) 2. 3 1 3 8 3. 钝 锐 直 4. ( )(√)(○) 5. 略 6. 8 5苏教版练习与测试小学数学二年级下册答案第65页 http://m.ksjqmj.com/ernianjidaan/4264.html 推荐访问