一年级数学上册第6单元《11_20各数的认识》作业新人教版.docx

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11120 各数的认识一、填空题1.括号里填上适当的数10+( )=15()-10=7( )+2=1315-()=102.1 数起,第四个数是()3.9 前面第五个数是( )4.0,8,12,17,20,15,1,9,14 中,最大的数是( ) ,最小的数是( ) ,从左边数 20 是第( )个数,20 的右边有( )个数。二、计算题1.(1)两个加数都是 10,和是多少?(2)减数是 16,被减数是 6,差是多少?2.看图列式计算(1) (2) (3) (4)三、应用题2= =14 3=10=( ) =( ) =( ) 2参考答案一、填空题1. 5 17 11 52.53. 44. 20 0 5 4二、计算题1.(1)10+10=20(2)16-6=102.(1)10+5=15(2)17-3=14(3)7+5=12(4)16-4-2=10三、应用题=( 13 ) =( 11 ) =( 3 )

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