小数乘除法计算题

1、小数计算题用竖式计算85.44 勻642.84 -101.7 67.5 -521.24 七60.736 -343.5 -235.21 -6.21 -0.03210-1.451.3 -.2791.2 -.80.66 -.311.97 -.569.6 -.915-).063.77 1.80.02 65.22 .39.99 0.02.s.4.67 0.95X2.449.435 0.0025.6 X.5（循环小数的用简便方法，除不尽保留 2位小数）：8.2-0.120.8 -.94.7 -1.25 -.232 M28.33 -.21.7 -.032.41 -.72.5 -.7=（保留三位小数）10.1

2、 -.3=（商用循环小数）10.75 -2.5=（用乘法验算）3.25 9.04=（用除法验算）5.2 X.9 + 0.9脱式计算（能简算的要简算）2.5 7.1 416.12 99 + 16.127.28 9+7.284.3 50X0.264 2.64 X.54.8 X00.156.5 X9 + 56.57.09 X0.8 0.8 X.094.85 + 0.35 他8.7 X7.4 - 8.77.X12.5 X.4 X.5 X6.81+6.81 X90.25 X85 X404.4 X.8 3.4 X.86.3+2.37 X.7(9.37+9 . 37+9 . 37+9 . 37) X2. 5

3、2.372.5 1.25 0.322.5 3.8 .04)0.125 26.8 .75 -0.53.75 -.125 -2.751.53+23.4 -.29.5 913.5 .9812.5 8.8解方程X+8.3=10.70.5x = 30x-5.6=9.4x 弋.8=905.3+7x=7.43x 弋=4.8X-0.8X=612x+8x=4.87(x-2)=494X8+2x=360.2x 0.4 + 0.5 = 3.79.4x 0.4x = 16.222 0.4x=126.7x 60.3 = 6.7126-3.5x=56口算(一)3.4 1.4=7.82 7.2=2.19 + 9.1 =10.

4、1 0.89=8.1 5.1 =0.728 0.24=0.8 + 0.18=0.89 0.25=1 0.98=0.048 + 0.52=19.9+11.1 =187-1000=1+3.89=0.081 0=75-10=0.96 -.8=0.8 7 =1.5 =1.32 X =0.7 X =10.3 =5X).6 =0.9 X.3 =3.5 X.2 =2.01 =10X0.05 =0.13 X =0.21 X00 =0.7 =0.05 X =4X).3 =0.17+0.06=1.02-0.09=7200-800=0.17+0.6=0.83-0.6=0.98-0.09=0.2+0.78=600 X

5、500=10.2+0.02=（二）0.15+0.7=10.2+0.2=8500 十500=0.35+0.5=0.35+0.63=3500-70=3.8+0.38=7500250=0.95-0.05=450+780=4.5-0.4=9.5-5=330X9=9.53-1.53=9.5-0.5=3.5+2.4=1-0.95=0.3+0.27=0.47+0.13=4.5+4=4-0.6=0.95+0.05=2.5+3.2=0.74+0.16=2.3 X00=9.8-4.8=480-40=0.53 -00=5.1+2.3=125X80=0.078 -0=0.52+0.4=70X12=（三）0.25 X0

6、0=3.4-2.8=0.6-0.37=0.052 X0=10+0.08=1-0.75=0.5 X000=7.82+0.3=13.5+6.5=3.05 X00=1.2-0.8=21.6-12.6=63-100=0.83-0.5=0.76+0.14=80-1000=2.7+0.4=0.72-0.43=30 X100=0.92-0.2=3.5+4.8=3.5+2.4=5+0.07=1-0.61 =0.47+0.23=0.25+0.75=3.7+0.33=0.51+0.33=1-0.6=8-4.6 =0.52+0.4=6.45+5.5=（四）9.53-1.53=8.8-6.7=10+0.08=9.5-7.3=7.82+0.3=8.8-6.7=9.5-7.3=1-0.95=0.96-0.35=9.53-1.53=0.25+0.75=0.83-0.5=12.5 8 =2.3 X =3.25 X =0.4 X0 =30X0.1 =2.6 X =4.1 X =0.35 X.2 =2.5 X=0.5 X0=0.6 X=2.1 X=0.7 X.8=0.04 X0=5.6+0.4=4.7+2