试题 试卷
题型:填空题 题类: 难易度:容易
北师大版数学四年级上学期期中考试试卷二
9×4=36
99×4=396
999×4=3996
9999×4=39996
99999×4=
999999×4=
1+3+5+7+9+11+13+15={#blank#}1{#/blank#}2={#blank#}2{#/blank#}.
0.8+0.88=1.68
0.8+0.88+0.888=2.568
0.8+0.88+0.888+0.8888=3.4568
0.8+0.88+0.888+0.8888+0.88888={#blank#}1{#/blank#}
0.8+0.88+0.888+0.8888+0.88888+0.888888={#blank#}2{#/blank#}
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