资源简介 中小学教育资源及组卷应用平台第5单元解方程真题练习-小学数学五年级上册人教版1.(2021秋 遂川县期末)解方程。4x﹣0.4=9.4 (x+0.3)×4=4.2 17.5﹣1.5x=2.52.(2021秋 瑞金市期末)解方程。x﹣1.8=4 4x=41.6 40﹣8x=163.(2021秋 阳信县期末)解方程。x÷0.9=2.7 x×12.5=2.5 x﹣0.85x=34.(2021秋 泊头市期末)解方程。28.5x﹣23=34 3x÷1.2=5 0.5(x+9)=565.(2021秋 吴兴区期末)解方程。6.6x﹣0.6x=13.2 2x﹣2.8=5.8 0.5(x+0.5)=106.(2021秋 沂南县期末)解方程5x+1.7=5.3 38﹣4x=16 (5x﹣1.2)×8=247.(2021秋 囊谦县期末)解方程。1.4x+9.8=33.6 2(x﹣3)=11.6 3x﹣1.8x=38.(2021秋 澄海区期末)解方程。x÷2.5=3 x+0.8x=0.9 0.5(x﹣4)=1.49.(2021秋 江门期末)解下列方程:3.8+x=9.3 2(x﹣1.2)=10 15x﹣6x=7.210.(2021秋 玉溪期末)解方程。(注意:不写解题依据不给分。)8x÷3=7.2 7x+2.8=9.1 3x﹣4.5=12.911.(2021秋 澄城县期末)解方程。(3x﹣4)×5=4 x÷8=0.4 12x﹣9x=8.712.(2021秋 舒兰市期末)解方程。x﹣3.2=9.6 (x+12)×6=108 13x﹣7.5x=2213.(2021秋 绍兴期末)解方程。x﹣5.5=4.5 4x+0.8x=19.2 8x﹣7×1.5=6.314.(2021秋 蒙阴县期末)解方程。5x+3x=80.24 3(x﹣5.6)=21.21 1.6x﹣43.2×0.8=45.4415.(2021秋 铁门关市期末)解方程。6x﹣35=13 2(x+16)=80 8x﹣x=10516.(2021秋 吴堡县期末)解方程。x+9.63=101.2 m÷3=4.6+5.6 7x﹣82.3=589.717.(2021秋 紫阳县期末)解方程。2x﹣9=4 4×(x﹣3)=4.8 1.2x﹣0.5×2=1118.(2021秋 富平县期末)解方程。6x+3=9 8x﹣4×14=0 7x÷3=8.419.(2021秋 盂县期末)解下列方程。x﹣1.65=3.79 (x+0.43)×3=9.42 12x+8x=26.820.(2021秋 安顺期末)解方程。4x﹣0.5x=0.7 1.6(x+3)=32 4.5×3+0.6x=21.321.(2021秋 乌拉特后旗期末)解方程。0.48x+1.04=2.24 3(x﹣1)=33 2x+1.5x=17.522.(2021秋 杭锦后旗期末)解方程。6×4﹣0.5x=12.8 15×(x+0.6)=18 5.9x﹣2.4x=723.(2022春 会宁县期末)解方程。8.39+x=60.6 38.5﹣7x=17.5 2.6x+3.4x=3.624.(2021秋 宁安市期末)解方程。8x﹣27.54÷2.7=1.8 (3x+18)÷5=6 6x﹣4.8×0.4=5.28第5单元解方程真题练习(专项突破)-小学数学五年级上册人教版参考答案与试题解析1.【解答】解:(1)4x﹣0.4=9.44x﹣0.4+0.4=9.4+0.44x=9.84x÷4=9.8÷4x=2.45(2)(x+0.3)×4=4.2(x+0.3)×4÷4=4.2÷4x+0.3﹣0.3=1.05﹣0.3x=0.75(3)17.5﹣1.5x=2.517.5﹣1.5x+1.5x=2.5+1.5x2.5+1.5x﹣2.5=17.5﹣2.51.5x=151.5x÷1.5=15÷1.5x=102.【解答】解:(1)x﹣1.8=4x﹣1.8+1.8=4+1.8x=5.8(2)4x=41.64x÷4=41.6÷4x=10.4(3)40﹣8x=1640﹣8x+8x=16+8x16+8x﹣16=40﹣168x=248x÷8=24÷8x=33.【解答】解:(1)x÷0.9=2.7x÷0.9×0.9=2.7×0.9x=2.43(2)x×12.5=2.5x×12.5÷12.5=2.5÷12.5x=0.2(3)x﹣0.85x=30.15x=30.15x÷0.15=3÷0.15x=204.【解答】解:(1)28.5x﹣23=3428.5x﹣23+23=34+2328.5x=5728.5÷28.5=57÷28.5x=2(2)3x÷1.2=53x÷1.2×1.2=5×1.23x=63x÷3=6÷3x=2(3)0.5(x+9)=560.5(x+9)÷0.5=56÷0.5x+9=112x+9﹣9=112﹣9x=1035.【解答】解:(1)6.6x﹣0.6x=13.26x=13.26x÷6=13.2÷6x=2.2(2)2x﹣2.8=5.82x﹣2.8+2.8=5.8+2.82x=8.62x÷2=8.6÷2x=4.3(3)0.5(x+0.5)=100.5(x+0.5)÷0.5=10÷0.5x+0.5=20x+0.5﹣0.5=20﹣0.5x=19.56.【解答】解:(1)5x+1.7=5.35x+1.7﹣1.7=5.3﹣1.75x=3.65x÷5=3.6÷5x=0.72(2)38﹣4x=1638﹣4x+4x=16+4x16+4x﹣16=38﹣164x=224x÷4=22÷4x=5.5(3)(5x﹣1.2)×8=24(5x﹣1.2)×8÷8=24÷85x﹣1.2=35x﹣1.2+1.2=3+1.25x=4.25x÷5=4.2÷5x=0.847.【解答】解:(1)1.4x+9.8=33.61.4x+9.8﹣9.8=33.6﹣9.81.4x÷1.4=23.8÷1.4x=17(2)2(x﹣3)=11.62(x﹣3)÷2=11.6÷2x﹣3+3=5.8+3x=8.8(3)3x﹣1.8x=31.2x=31.2x÷1.2=3÷1.2x=2.58.【解答】解:(1)x÷2.5=3x÷2.5×2.5=3×2.5x=7.5(2)x+0.8x=0.91.8x=0.91.8x÷1.8=0.9÷1.8x=0.5(3)0.5(x﹣4)=1.40.5(x﹣4)×2=1.4×2x﹣4=2.8x﹣4+4=2.8+4x=6.89.【解答】解:(1)3.8+x=9.33.8+x﹣3.8=9.3﹣3.8x=5.5(2)2(x﹣1.2)=102(x﹣1.2)÷2=10÷2x﹣1.2=5x﹣1.2+1.2=5+1.2x=6.2(3)15x﹣6x=7.29x=7.29x÷9=7.2÷9x=0.810.【解答】解:(1)8x÷3=7.28x÷3×3=7.2×38x=21.68x÷8=21.6÷8x=2.7(2)7x+2.8=9.17x+2.8﹣2.8=9.1﹣2.87x=6.37x÷7=6.3÷7x=0.9(3)3x﹣4.5=12.93x﹣4.5+4.5=12.9+4.53x=17.43x÷3=17.4÷3x=5.811.【解答】解:(1)(3x﹣4)×5=415x﹣20=415x﹣20+20=4+2015x=2415x÷15=24÷15x=1.6(2)x÷8=0.4x÷8×8=0.4×8x=3.2(3)12x﹣9x=8.73x=8.73x÷3=8.7÷3x=2.912.【解答】解:(1)x﹣3.2=9.6x﹣3.2+3.2=9.6+3.2x=12.8(2)(x+12)×6=108(x+12)×6÷6=108÷6x+12﹣12=18﹣12x=6(3)13x﹣7.5x=225.5x=225.5x÷5.5=22÷5.4x=413.【解答】解:(1)x﹣5.5=4.5x﹣5.5+5.5=4.5+5.5x=10(2)4x+0.8x=19.24.8x=19.24.8x÷4.8=19.2÷4.8x=4(3)8x﹣7×1.5=6.38x﹣10.5=6.38x﹣10.5+10.5=6.3+10.58x÷8=16.8÷8x=2.114.【解答】解:(1)5x+3x=80.248x=80.248x÷8=80.24÷8x=10.03(2)3(x﹣5.6)=21.213(x﹣5.6)÷3=21.21÷3x﹣5.6=7.07x﹣5.6+5.6=7.07+5.6x=12.67(3)1.6x﹣43.2×0.8=45.441.6x﹣34.56=45.441.6x﹣34.56+34.56=45.44+34.561.6x=801.6x÷1.6=80÷1.6x=5015.【解答】解:(1)6x﹣35=136x﹣35+35=13+356x=486x÷6=48÷6x=8(2)2(x+16)=802(x+16)÷2=80÷2x+16=40x+16﹣16=40﹣16x=24(3)8x﹣x=1057x=1057x÷7=105÷7x=1516.【解答】解:(1)x+9.63=101.2x+9.63﹣9.63=101.2﹣9.63x=91.57(2)m÷3=4.6+5.6m÷3×3=10.2×3m=30.6(3)7x﹣82.3=589.77x﹣82.3+82.3=589.7+82.37x=6727x÷7=672÷7x=9617.【解答】解:(1)2x﹣9=42x﹣9+9=4+92x=132x÷2=13÷2x=6.5(2)4×(x﹣3)=4.84×(x﹣3)÷4=4.8÷4x﹣3=1.2x﹣3+3=1.2+3x=4.2(3)1.2x﹣0.5×2=111.2x﹣0.5×2+0.5×2=11+0.5×21.2x=121.2x÷1.2=12÷1.2x=1018.【解答】解:(1)6x+3=96x+3﹣3=9﹣36x=66x÷6=6÷6x=1(2)8x﹣4×14=08x﹣56=08x﹣56+56=0+568x=568x÷8=56÷8x=7(3)7x÷3=8.47x÷3×3=8.4×37x=25.27x÷7=25.2÷7x=3.619.【解答】解:(1)x﹣1.65=3.79x﹣1.65+1.65=3.79+1.65x=5.44(2)(x+0.43)×3=9.42(x+0.43)×3÷3=9.42÷3x+0.43=3.14x+0.43﹣0.43=3.14﹣0.43x=2.71(3)12x+8x=26.820x=26.820x÷20=26.8÷20x=1.3420.【解答】解:(1)4x﹣0.5x=0.73.5x=0.73.5x÷3.5=0.7÷3.5x=0.2(2)1.6(x+3)=321.6(x+3)÷1.6=32÷1.6x+3=20x+3﹣3=20﹣3x=17(3)4.5×3+0.6x=21.313.5+0.6x=21.313.5+0.6x﹣13.5=21.3﹣13.50.6x=7.80.6x÷0.6=7.8÷0.6x=1321.【解答】解:(1)0.48x+1.04=2.240.48x+1.04﹣1.04=2.24﹣1.040.48x=1.20.48x÷0.48=1.2÷0.48x=2.5(2)3(x﹣1)=333(x﹣1)÷3=33÷3x﹣1=11x﹣1+1=11+1x=12(3)2x+1.5x=17.53.5x=17.53.5x÷3.5=17.5÷3.5x=522.【解答】解:(1)6×4﹣0.5x=12.86×4﹣0.5x+0.5x=12.8+0.5x12.8+0.5x﹣12.8=24﹣12.80.5x=11.22×0.5x=11.2×2x=22.4(2)15×(x+0.6)=1815×(x+0.6)÷15=18÷15x+0.6=1.2x+0.6﹣0.6=1.2﹣0.6x=0.6(3)5.9x﹣2.4x=73.5x=73.5x÷3.5=7÷3.5x=223.【解答】解:(1)8.39+x=60.68.39+x﹣8.39=60.6﹣8.39x=52.21(2)38.5﹣7x=17.538.5﹣7x+7x=17.5+7x17.5+7x﹣17.5=38.5﹣17.57x÷7=21÷7x=3(3)2.6x+3.4x=3.66x=3.66x÷6=3.6÷6x=0.624.【解答】解:8x﹣27.54÷2.7=1.88x﹣10.2=1.88x﹣10.2+10.2=1.8+10.28x=12x=1.5(3x+18)÷5=6(3x+18)÷5×5=6×53x+18=303x+18﹣18=30﹣183x=12x=46x﹣4.8×0.4=5.286x﹣1.92=5.286x﹣1.92+1.92=5.28+1.926x=7.2x=1.2HYPERLINK 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