贵州省黔东南苗族侗族自治州2023-2024学年六年级下学期期末数学试卷

黔东南州2024年小学升学文化水平统一检测六年级数学参考答案填空。（23分）2049000204.920521201216694：916：81301.447.536473八2028004.086.50.0353n+1判断正误。（5分）1.×2.√3.×4.×5.√选一选，将正确的答案填在括号里。（5分）1.D2.D3.B4.C5.A6.C四、计算。（34分）1.直接写得数（10分）26322.714/155/841.3510017/306.111.9910能简算的要简算。（18分）12.38+5.76—2.38+4.24=（12.38—2.38）+（5.76+4.24）.................................................................................................(2分）=10+10=20...................................................................................................................................................(3分）×3.5+5.5×0.8+80%=0.8×3.5+5.5×0.8+0.8×1=0.8×（3.5+5.5+1）......................................................................................................................(2分）=0.8×10=8...................................................................................................................................................(3分）36×（—+）=36×—36×+36×.............................................................................................................(2分）=30—16+3=17................................................................................................................................................(3分）（9.88+0.24÷2）×7.6=(9.88+0.12)×7.6..........................................................................................................................(1分)=10×7.6........................................................................................................................................(2分）=76................................................................................................................................................(3分）36÷[1－（－）]=36÷[1－].......................................................................................................................(2分）=36÷=48................................................................................................................................................(3分）=(+—(2.375+）.............................................................................................(2分）=17—6=11...............................................................................................................................................(3分）3.求未知数x（6分）3五、画一画（共4分，每图2分）（答案不唯一）六、图形与面积、体积（共8分，每题4分）（1）求下面组合图形的体积×3.14×（6÷2）2=9.42cm2.....................................................................................(2分）9.42×（3.5+5.5)=84.78cm3.......................................................................................(4分）（2）在下图中长方形面积与圆面积相等，已知圆的半径是2cm，求阴影部分面积。2×2×3.14=12.56cm2.................................................................................................(2分）12.56—12.56÷4=9.42cm2........................................................................................(4分）七、走进生活，解决问题（21分，1-4每题4分，第5题5分）1.420÷40%－420＝630（米）..............................................................................................(2分）630÷（3＋4）×3＝270（米）........................................................................................(3.5分）答：第二天修了270米。.................................................................................................(4分）2.12÷＝48000000（厘米）................................................................................................(1分）48000000厘米＝480千米...........................................................................................................(1.5分）480÷120＝4（小时）..................................................................................................................(2.5分）13：30＋4小时＝17：30...........................................................................................................(3.5分）答：17：30到达B地。...............................................................................................................(4分）3.解：设相当于保护了x棵树。5∶85＝2∶x..............................................................................................................................(2.5分）x＝34..................................................................................................................................(3.5分）答：相当于保护了34棵树。....................................................................................................(4分）4.÷2－＝........................................................................................................................(2.5分）1÷＝15（天）....................................................................................................................(3.5分）答：如果乙单独完成这项工程，需要15天。.......................................................................(4分）5.3.14×42×（12－10）＝100.48（立方厘米）.......................................................................(1.5分）3.14×（8÷2）2＝50.24（平方厘米）.............................................................