二年级下册数学期末复习冲刺卷专项复习卷3 时、分、秒与分米和毫米(含答案)
期末复习冲刺卷专项复习卷3 时、分、秒与分米和毫米一、填空。(每空2分,共46分)1.在下面括号里填上合适的长度单位。2.在下面括号里填上“时”“分”或“秒”。(1)东东吃午饭用了20( )。(2)我们每天的睡眠时间大约是9( )。(3)我们的心脏跳动13次大约需要9( )。(4)丽丽刷牙大约用了3( )。(5)用微波炉加热牛奶大约用1( )。3.一个人唱一支歌要3分钟,10个人合唱这支歌需要( )分钟。4.从上海开往南京的车,A车是6:50开,B车是7:30开,()车开得早。5.钟面上,时针从2走到3,需要的时间是( )时,是( )分钟。1...
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