小学四年级数学小数乘法计算题
四年级数学小数乘法计算题
四年级数学小数乘法计算题一、直接写出得数。
（10分）8．29×10= 2．5×0．2= 4．87-2．7= 3．07×10= 0.13×2.8= 3.9×2= 5．8×10= 0.6×0.8= 1.1×9= 2.4×0.2= 0．8×25= 2．4×0．2= 0．02×500= 2．8×10= 8． 2.515×10= 29×100= 2．5×0．4= 4．87-1．7= 8．07×1000= 70×0.001= 2.515×10= 1.1×0.4= 10-0.3= 0.87－0.6= 1.1-1=0.326×100= 0.81+0.09= 1.25×8×4= 5.8×0.6×5=二、用竖式计算。
（12分）2.97×3.5= 6.05×0.83=0.78×4.5= 3.36×3.67=2.97×3.8= 7.05×0.84=0.78×4.3= 1.8×3.67=1.24×1.5＝ 3.2×1.8＝0.32×0.9＝ 4.2×1.01=60.4×2.5 = 2.37×0.4 = 60.4×2.5=7.05×0.84= 1.8×3.67=60.4×2.5 = 2.37×0.4 = 0.32×0.8=0.28×0.25=20.4×1.8=0.23×4.5=三、用简便方法计算下面各题。
（16分）①3.8×6.7+3.3×3.8 ② 1.28×0.29-0.29×0.28 (3)101×4.8(4)56×12.5(5)101×4.8 (6) 3.8×6.7+3.3×3.8 (7) 1.28×0.29-0.29×0.28 (8)56×12.5×2(9)3.8×6.7+3.3×3.8四、能简算的用简便方法计算。
四年级小数乘法竖式练习题100道
四年级小数乘法竖式练习题100道6.5×8.4=56×1.3= .2×2.5= .6×1.08= 0.87×7= .5×16= 12.5×42=1.8×23=0.37×0.4= 1.06×25= ×8.06= 0.6×0.39=3.5×3= 0.72×5= .05×4=12.4×7=2.3×12=6.7×0.3= .4×6.2= 0.56×0.04=6.7×0.3=0.56×0.04=.7×4.6= 0.29×0.07=27×0.43= 1.7×0.45=1.2×1.4= 0.37×8.4= 0.86×1.2=2.34×0.15= 1×2.84=.32×8=6.8×25= .58×3=×1.6=×2.4=2.56×3.7=1.56×0.08=1.03×5.3= 0.208×2.5=1.12×1.1=0.326×1.3=6.5×6.5= .3×2.6= 0.98×5.5=.1×2.15=.2×2.9=0.48×8.1=6.4×0.063= 0.15×0.65=小数乘法竖式计算题姓名：0.7×7.8= 1.3×0.25=0.37×8.4=1.36×0.8=0.78×0.04=4.8×0.25=4.8×1.2=9.8×1.3=0.12×50=3.25×1.8=0.32×0.8= .05×4.5=.14×0.5=.8×1.3=0.32×1.2=.6×0.75= 0.15×0.63=9.34×1.4=小数除法竖式计算题0.98÷2.8= 15.9÷15= .88÷1.5=7.79÷95=435÷12= 0.768÷1.6=8.4÷0.56=37.1÷0.53=2.7÷7.5=6.21÷0.3=41.6÷2.6=0.16÷0.25=4.06÷0.58= 0.21÷0.025=.2÷1.2=.48÷3.5= 0.7÷0.25= .3÷0.42= 0.16÷2.5= 13.3÷0.95=9.6÷0.16= 0.012÷0.25=.2÷0.12= 12.3÷1.5=小学四年级下册数学小数乘法练习题一、直接写得数3.8×2=10×0.7= 13.9×0=08÷100= .5×1=1.8×0.5=3.2×3=13.1×0.3= 0.08×1.25= .5×4= .5×8=0.5×0.2= 0.6×0.1= 0.7×0.8=2.5×8×0=125×0.8= 二、竖式计算2.8×0.7= 13×0.15= 0.39×0.6=0.38×600=7.05×2.4= 0.46×7.9=89.3×7.6=60.5×400=三、混合运算12.5×8.2×0.23×1.4＋0.23×8.60.125×0.4×0.16×2.55.6×101 .85×991.15×99＋1.1516.2×101－16..5×7.8＋5.5×7.8四、一斤香蕉3.8元，一斤苹果4.2元。
四年级下册数学小数乘法计算题
四年级下册数学小数乘法计算题一、小数乘法的计算方法1. 先按照整数乘法算出积例如计算2.5×3.2，先把2.5和3.2看作25和32，计算25×32 = 800。
2. 再看因数中一共有几位小数，就从积的右边起数出几位，点上小数点在2.5×3.2中，2.5有一位小数，3.2也有一位小数，一共有两位小数。
那么从800的右边起数出两位，点上小数点，结果就是8.00，小数末尾的0可以去掉，最终结果为8。
二、小数乘法计算题及解析1. 0.5×0.3=解析：先算5×3 = 15，因数0.5和0.3一共有两位小数，从15的右边起数出两位点上小数点，得到0.15。
2. 1.2×0.4=解析：计算12×4 = 48，1.2有一位小数，0.4也有一位小数，共两位小数，从48右边起数两位点上小数点，结果是0.48。
3. 2.3×1.5=解析：先算23×15 = 345，2.3有一位小数，1.5有一位小数，总共两位小数，从345右边起数两位点小数点，得到3.45。
4. 0.8×0.9=解析：8×9 = 72，因数0.8和0.9都有一位小数，共两位小数，从72右边起数两位点上小数点，结果是0.72。
5. 3.5×2.1=解析：计算35×21 = 735，3.5有一位小数，2.1有一位小数，共两位小数，从735右边起数两位点上小数点，得到7.35。
6. 4.2×0.6=解析：先算42×6 = 252，4.2有一位小数，0.6有一位小数，共两位小数，从252右边起数两位点上小数点，结果是2.52。
7. 0.7×1.3=解析：7×13 = 91，0.7和1.3各有一位小数，共两位小数，从91右边起数两位点上小数点，得到0.91。
8. 2.6×3.1=解析：计算26×31 = 806，2.6有一位小数，3.1有一位小数，共两位小数，从806右边起数两位点上小数点，结果是8.06。
四年级数学小数乘法计算题
四年级数学小数乘法计算题一、直接写出得数。
（10分）8．29×10= 2．5×0．2= 4．87-2．7= 3．07×10= 0.13×2.8= 3.9×2= 5．8×10= 0.6×0.8= 1.1×9= 2.4×0.2= 0．8×25= 2．4×0．2= 0．02×500= 2．8×10= 8． 2.515×10= 29×100= 2．5×0．4= 4．87-1．7= 8．07×1000= 70×0.001= 2.515×10= 1.1×0.4= 10-0.3= 0.87－0.6= 1.1-1=0.326×100= 0.81+0.09= 1.25×8×4= 5.8×0.6×5=二、用竖式计算。
（12分）2.97×3.5= 6.05×0.83= 0.78×4.5= 3.36×3.67=2.97×3.8= 7.05×0.84= 0.78×4.3= 1.8×3.67=1.24×1.5＝ 3.2×1.8＝0.32×0.9＝ 4.2×1.01=60.4×2.5 = 2.37×0.4 = 60.4×2.5=7.05×0.84=1.8×3.67=60.4×2.5 = 2.37×0.4 = 0.32×0.8=0.28×0.25= 20.4×1.8= 0.23×4.5=三、用简便方法计算下面各题。
（16分）①3.8×6.7+3.3×3.8 ②1.28×0.29-0.29×0.28 (3)101×4.8(4)56×12.5 (5)101×4.8 (6) 3.8×6.7+3.3×3.8(7) 1.28×0.29-0.29×0.28 (8)56×12.5×2 (9) 3.8×6.7+3.3×3.8四、能简算的用简便方法计算。
四年级小数乘法竖式练习题100道
四年级小数乘法竖式练习题100道6.5×8.4=56×1.3= .2×2.5= .6×1.08= 0.87×7= .5×16= 12.5×42=1.8×23=0.37×0.4= 1.06×25= ×8.06= 0.6×0.39=3.5×3= 0.72×5= .05×4=12.4×7=2.3×12=6.7×0.3= .4×6.2= 0.56×0.04=6.7×0.3=0.56×0.04=.7×4.6= 0.29×0.07=27×0.43= 1.7×0.45=1.2×1.4= 0.37×8.4= 0.86×1.2=2.34×0.15= 1×2.84=.32×8=6.8×25= .58×3=×1.6=×2.4=2.56×3.7=1.56×0.08=1.03×5.3= 0.208×2.5=1.12×1.1=0.326×1.3=6.5×6.5= .3×2.6= 0.98×5.5=.1×2.15=.2×2.9=0.48×8.1=6.4×0.063= 0.15×0.65=小数乘法竖式计算题姓名：0.7×7.8= 1.3×0.25=0.37×8.4=1.36×0.8=0.78×0.04=4.8×0.25=4.8×1.2=9.8×1.3=0.12×50=3.25×1.8=0.32×0.8= .05×4.5=.14×0.5=.8×1.3=0.32×1.2=.6×0.75= 0.15×0.63=9.34×1.4=小数除法竖式计算题0.98÷2.8= 15.9÷15= .88÷1.5=7.79÷95=435÷12= 0.768÷1.6=8.4÷0.56=37.1÷0.53=2.7÷7.5=6.21÷0.3=41.6÷2.6=0.16÷0.25=4.06÷0.58= 0.21÷0.025=.2÷1.2=.48÷3.5= 0.7÷0.25= .3÷0.42= 0.16÷2.5= 13.3÷0.95=9.6÷0.16= 0.012÷0.25=.2÷0.12= 12.3÷1.5=小学四年级下册数学小数乘法练习题一、直接写得数3.8×2=10×0.7= 13.9×0=08÷100= .5×1=1.8×0.5=3.2×3=13.1×0.3= 0.08×1.25= .5×4= .5×8=0.5×0.2= 0.6×0.1= 0.7×0.8=2.5×8×0=125×0.8= 二、竖式计算2.8×0.7= 13×0.15= 0.39×0.6=0.38×600=7.05×2.4= 0.46×7.9=89.3×7.6=60.5×400=三、混合运算12.5×8.2×0.23×1.4＋0.23×8.60.125×0.4×0.16×2.55.6×101 .85×991.15×99＋1.1516.2×101－16..5×7.8＋5.5×7.8四、一斤香蕉3.8元，一斤苹果4.2元。
四年级小数乘法竖式练习题100道
四年级小数乘法竖式练习题100道6.5×8.4=56×1.3= .2×2.5= .6×1.08= 0.87×7= .5×16= 12.5×42=1.8×23=0.37×0.4= 1.06×25= ×8.06= 0.6×0.39=3.5×3= 0.72×5= .05×4=12.4×7=2.3×12=6.7×0.3= .4×6.2= 0.56×0.04=6.7×0.3=0.56×0.04=.7×4.6= 0.29×0.07=27×0.43= 1.7×0.45=1.2×1.4= 0.37×8.4= 0.86×1.2=2.34×0.15= 1×2.84=.32×8=6.8×25= .58×3=×1.6=×2.4=2.56×3.7=1.56×0.08=1.03×5.3= 0.208×2.5=1.12×1.1=0.326×1.3=6.5×6.5= .3×2.6= 0.98×5.5=.1×2.15=.2×2.9=0.48×8.1=6.4×0.063= 0.15×0.65=小数乘法竖式计算题姓名：0.7×7.8= 1.3×0.25=0.37×8.4=1.36×0.8=0.78×0.04=4.8×0.25=4.8×1.2=9.8×1.3=0.12×50=3.25×1.8=0.32×0.8= .05×4.5=.14×0.5=.8×1.3=0.32×1.2=.6×0.75= 0.15×0.63=9.34×1.4=小数除法竖式计算题0.98÷2.8= 15.9÷15= .88÷1.5=7.79÷95=435÷12= 0.768÷1.6=8.4÷0.56=37.1÷0.53=2.7÷7.5=6.21÷0.3=41.6÷2.6=0.16÷0.25=4.06÷0.58= 0.21÷0.025=.2÷1.2=.48÷3.5= 0.7÷0.25= .3÷0.42= 0.16÷2.5= 13.3÷0.95=9.6÷0.16= 0.012÷0.25=.2÷0.12= 12.3÷1.5=小学四年级下册数学小数乘法练习题一、直接写得数3.8×2=10×0.7= 13.9×0=08÷100= .5×1=1.8×0.5=3.2×3=13.1×0.3= 0.08×1.25= .5×4= .5×8=0.5×0.2= 0.6×0.1= 0.7×0.8=2.5×8×0=125×0.8= 二、竖式计算2.8×0.7= 13×0.15= 0.39×0.6=0.38×600=7.05×2.4= 0.46×7.9=89.3×7.6=60.5×400=三、混合运算12.5×8.2×0.23×1.4＋0.23×8.60.125×0.4×0.16×2.55.6×101 .85×991.15×99＋1.1516.2×101－16..5×7.8＋5.5×7.8四、一斤香蕉3.8元，一斤苹果4.2元。
四年级小数乘法竖式练习题100道
四年级小数乘法竖式练习题100道6.5×8.4=56×1.3= .2×2.5= .6×1.08= 0.87×7= .5×16= 12.5×42=1.8×23=0.37×0.4= 1.06×25= ×8.06= 0.6×0.39=3.5×3= 0.72×5= .05×4=12.4×7=2.3×12=6.7×0.3= .4×6.2= 0.56×0.04=6.7×0.3=0.56×0.04=.7×4.6= 0.29×0.07=27×0.43= 1.7×0.45=1.2×1.4= 0.37×8.4= 0.86×1.2=2.34×0.15= 1×2.84=.32×8=6.8×25= .58×3=×1.6=×2.4=2.56×3.7=1.56×0.08=1.03×5.3= 0.208×2.5=1.12×1.1=0.326×1.3=6.5×6.5= .3×2.6= 0.98×5.5=.1×2.15=.2×2.9=0.48×8.1=6.4×0.063= 0.15×0.65=小数乘法竖式计算题姓名：0.7×7.8= 1.3×0.25=0.37×8.4=1.36×0.8=0.78×0.04=4.8×0.25=4.8×1.2=9.8×1.3=0.12×50=3.25×1.8=0.32×0.8= .05×4.5=.14×0.5=.8×1.3=0.32×1.2=.6×0.75= 0.15×0.63=9.34×1.4=小数除法竖式计算题0.98÷2.8= 15.9÷15= .88÷1.5=7.79÷95=435÷12= 0.768÷1.6=8.4÷0.56=37.1÷0.53=2.7÷7.5=6.21÷0.3=41.6÷2.6=0.16÷0.25=4.06÷0.58= 0.21÷0.025=.2÷1.2=.48÷3.5= 0.7÷0.25= .3÷0.42= 0.16÷2.5= 13.3÷0.95=9.6÷0.16= 0.012÷0.25=.2÷0.12= 12.3÷1.5=小学四年级下册数学小数乘法练习题一、直接写得数3.8×2=10×0.7= 13.9×0=08÷100= .5×1=1.8×0.5=3.2×3=13.1×0.3= 0.08×1.25= .5×4= .5×8=0.5×0.2= 0.6×0.1= 0.7×0.8=2.5×8×0=125×0.8= 二、竖式计算2.8×0.7= 13×0.15= 0.39×0.6=0.38×600=7.05×2.4= 0.46×7.9=89.3×7.6=60.5×400=三、混合运算12.5×8.2×0.23×1.4＋0.23×8.60.125×0.4×0.16×2.55.6×101 .85×991.15×99＋1.1516.2×101－16..5×7.8＋5.5×7.8四、一斤香蕉3.8元，一斤苹果4.2元。
四年级数学小数乘法计算题
四年级数学小数乘法计算题四年级数学小数乘法计算题一、直接写出得数。
（10 分）8．29X10= 2．5 0．2= 4．87-2．7= 3．07 10= 0.13 2.8= 3.9X2= 5．8 10= 0.6 0.8= 1.1 9= 2.4 0.2= 0．8X25= 2．4 0．2= 0．02 500= 2．8 10= 8． 2.515 10= 29X 100= 2．5 0．4= 4．87-1 ．7= 8．07 1000= 70 0.001= 2.515 1X0= 1.1 0.4= 10-0.3= 0.87－0.6= 1.1-1=0.326 X100= 0.81+0.09= 1.25 8 4= 5.8 0.6 5=二、用竖式计算。
12分）（2.97 X3.5= 6.05 0.83= 0.784.5= 3.36 3.67=2.97 X3.8= 7.05 0.84= 0.784.3= 1.8 3.67=1.24 X.5 = 3.2 18 =0.32 0.9= 4.2 1.01=60.4 2.5 = 2.37 0.4 = 60.4 2.5= 7.05 0.84=1.8 X 3.67= 60.42.5 = 2.37 0.4 = 0.32 0.8=0.28 0.25= 20.4 1.8= 0.23 4.5=三、用简便方法计算下面各题。
（16分）①3.8 X6.7+3.3② 1.28 0.29-0.29 0.28 (3) 101 4.8X3.8(4)56 12.5 (5)101 4.8 (6) 3.8 6.7+3.3 3.8(7) 1.28 0.29-0.29 0.28 (8)56 12.5 2 (9) 3.8 6.7+3.3 3.8四、能简算的用简便方法计算。
⑴ 1.6 X 3.9 X 1.25 (2) 4.87 X 2.34+48.7 X 0.266(13) 27－12.34－10.66(14) 0.028X 150＋2.8X 8.5六、脱式计算(能简便运算的要简便运算)1、 0.25X 0.975X 40 0.89X 5.22、 0.89 X 4.8 ＋ 3、 (8+ 0.8)X 1.254 、 10-0.38-0.62(5) 2.5X 3.2X 12.5(6)3.95X 7.6+3.95 X 3.4-3.95(7)107+39+93+61(8)2182-1655-345(9) 76 X 125 X 8 25 X (4X 9)(10)8 X 125+50) 3600 60■七(11)127X 973-973 X 27(12) 103 X 32 98 X 53五、用你喜欢的方法计算。