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1、0.56 X 0.04=3.7 X 4.6=0.29X 0.07=6.5X 8.4=五年级数学上姓名： 一用竖式计算。1.35 - 27=0.416-32=15.6 - 24=0.138- 15=2.688 十 0.56=10.625-25=0.375 - 0.025=0.16-0.25=126 - 45=15-0.06=10 - 0.004=2.7 - 7.5=25.6 - 0.032=56.28- 67=105- 75=6.75- 15=22.4 - 4=1.8- 12=6.7X 0.3=2.4X 6.2=1.8X 23=0.37X 0.4=1.06X 25=7X 0.86=0.6X 0.
2、86=27 X 0.43=4.8X 0.25=1.5X 105=口算。0. 8X 25=1.25X 8=0.25X 4=10- 0.5=1000- 0.8=234X 0.1=456X 0.00148= 6 12=3-15=30X 0.9=3.2X 100=三简便算法。2.32 X 6.5 7.68 X 6.56.345X 2.54 6.45 X 6.345 6.34564X 0.1251.25X 64X 0.12525X 0.32X 12.56.8X 0.528.6 X 0.5537.5X 5416.24X 25438.4X 1254.5X 4X 0.5420X 0.2536X 0.5 438
3、.9X 53.6-0.250.48-1.2596000- 1252.4 - 0.1257.2-2.537X 8X 1.252.5X 104五年级小数乘除法计算题复习一、计算题（ 30 分）4.2 - 3.5 =1、直接写出得数。0.45 x 2.5 =0.8 x 1.25 =0.3x3.6 =0.3x0.3 =10x 0.07=0.3x1.4=0.05x7=0.92 x 0.4=0.2x0.26 =0.14x4=0.02 x 0.1 =1.2x0.3 =0.2x0.4=8.2 + 1.8 =10035.22=2.3x4=2.5x0.4=2.4x5=0.22x4=3.25 x 0=0.9 0.5
4、2 =3.99 x 1 =0x3.52=12.5x8=8- 10=10-1.8-7.2=0.43+3.57=2.5x4x12=0.9x0.8=7.5x-3x=a+3a+7a=1.05 x 100=1-0.5=0.96-3=1.47 -0.7=5.4-6=0.16.5 x 10=0.56 x 100=3.78 x 100=3.215 x 100=0.8x10=4.08x100=1.1 x 0.2=0.6x 0.8=3x 0.9=2.5x0.4=3.6x 0.4=4-0.8=12.5x8=50x 0.04=80x 0.3 =1.1 x 9=0.16 x 5 =1.78 + 2.2 =9.6-0.6
5、 =1.2x0.5-0.4 =0.7-0.01 =2.5x0.4 =12 3.9=1.25 x 8- 1.25 =6.6 - 0.66 =5.37x0+4.63 =3.9 + 2.03 =1.6+2.4 X 0.3 =2.14 0.9 =2745673=0.3X 0.3=7.2 + 2.8 =0.9 - 0.01 =12-0.3=13+4 =0.96+ 0.3 =1.5X0.42.5X 0.7X 0.8=8 2.5 =16+ 1.6 =8X（2.5+0.25）=8.4X 0.2=0.36+ 0.644.2 + 0.1 =13.8 + 9.9 =1.25 X 0.8 X 0.5 =3.5 + 3
6、.5 X3=72.8 + 0.8 =2.4X 2.512X 2.5 =19.6 + 2 =8.4 + 4.2 =0.05X0.81.23 X 3=8.8+2.2=1.5+0.25）X 4=0.5X0.8=1.6X0.20.9+0.15=1.8 X 0.4=7.2X0.3=1.4 X 5=2.8X4=19.6+4=2、用竖式计算0.396+1.2=0.18X15=0.756+0.36=2.87+0.7=7+0.25 =5.6X1.01=64.32+16=2.56 0.37 =3.2+1.6=0.75X4=2.8X 0.3=5.5+0.55=0.08X100=22.5X415.6X13=位小数）7
7、.15 X 2290.75 - 3.3 =3.68 X 0.253.06 X 36=1.55 - 3.9 =3.7X0.016 =16.9 - 0.1 3=13.76X 0.8=6.4X 0.54.48 X 0.45.25X55.2X0.635.4 X 4.20.042X 0.540.76X0.328.4X1.30.25X0.0462.52X3.41.08X250.12X0.5X0.164.8 X 0.25 =0.125 X 1.4 （保留两位小数）2.5 - 0.7=（保留三位小数）10.1 - 3.3=（商用循环小数）10.75 - 12.5=用乘法验算）3.25 X 9.04=(用除法验
8、算)3、脱式计算（能简算的要简算）2.5X7.1 X416.12X9916.125.2X0.90.97.28 X 99+7.2815.7X244.3X50X0.264 2.64X0.526X 15.7 (2.275 0.625) X0.283.94+34.3 X 0.21.2 X (9.6 - 2.4) -4.88.9X1.1 X 4.72.7X5.4X3.93.6X9.85 -5.#8.05 X 3.4+7.66.58 X 4.5 X 0.92.8X0.5+1.584.84.8X0.5(1.25 32 4.9 0.90.125) X80.68 -(5.2 -3.5 ) X 1.254.8X1
9、00.156.5X9956.57.09X10.80.8X7.094.85 + 0.35 - 1.48.7X 17.4 - 8.7 X 7.412.5X0.4X2.5X80.87X3.16+4.649.5X10140.5 - 0.81 X 0.184.8 X( 15 - 2.4 )2 13. X 0. X 82576.81+6.81 X990.25X185X404.4X 0.8 3.4X 0.8(9.37+9 37+937+937) X 2542. X 1. 1. X 1.752.37 X 6.3+2.37 X 3.72.5X1.25X0.323.8X10.12.5X(3.8 X0.04)8X
10、10.17.69X10130.25X39+0.250.125X7246X 0.33+54X 0.#6.8 X 0.75 - 0.57.23.75 - 0.125 2.751.53+23.4 -9.5X9913.5X0.9812.5X8.8二、解方程：7X=49126-X=4254-X=2413+A=28.52.4X=26.47.5x 3x=185X 1.3-2x=5.524x+6x=63.65.6x+4.4x=5.2三、列式计算1、20减去 0.8 的差除以 4个 0.3 的和，商是多少？2、一个数的 2.6 倍加上 9，和是 35，求这个数。（用方程解）3、1.2 与 4的积，减去 6.除以
11、 5的商，差是多少？4、2.1 除以 35的商，加上 4.与 0.45 的积，和是多少？5、一个数的 3倍加上 6与 8的积，和是 84，求这个数6、4.08 除以 0.6 的商，再乘以 5. ，积是多少？7、甲、乙两数的积是 25.2 ，甲数是 56，乙数是多少？8、把 0.47 平均分成 7 份，每份是多少？9、1.25 乘 4.2 减 5，差是多少？10、比 4.7 的 1.5 倍多 3.05 的数是多少？0.43 X 0.28=6.45 X 0.73=4.6 X 0.6=8.9X 0.05=3.08X0.43=1.5 X 26.7=5.22 - 29=18.72 - 3.6=13.95 - 3.1 =2.5X 7.1X416.12X9916.125.2X0.90.93、脱式计算（能简算的要简算）7.28 X 99+7.284.3 X 50X 0.264 2.64X 0.52.8 X0.5+1.5826X 15.715.7X 24(2.275 0.625)X 0.283.94+34.3 0X.21.2 X9.6 4) 4.88.9 X1.1 X4.72.7 X5.4 X3.93.6 X9.85-5.468.05 X3.4+7.66.58 X4.5 X0.9
