试题 试卷
题型:单选题 题类: 难易度:普通
北师大版数学四下1.7《歌手大赛》同步练习
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9.8+6.52= 23.4-9.4+0.6=
7-4.68= 20.9-(3.7-2.7)=
8.5+5.5-5.5= 100-15×2=
13-5.42-2.58= 90÷3×3=
6.88×0.86.88 6.88÷0.86.88
6.88+0.86.88 6.88-0.86.88
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