《五年级上册数学口算题.docx》由会员分享，可在线阅读，更多相关《五年级上册数学口算题.docx（10页珍藏版）》请在三一文库上搜索。
1、11.一个数乘以0.5 等于这个数除以2，即： a 0.5 = a 2 = a122.一个数乘以0.1 等于这个数除以10，变成了原来的十分之一，即：a0.1= a 10 = a 1104.254=0. 070.5=330.04=6.54=2.3 0.06=150.08=0.090.9=4.70.1=540.8=1.60.03=0.80.9=0.6100=17.50.01=3.20.5=250.4=12.50.8=66.5=3.60.7=6.50.4=8.50.2=0.660.3=2.50.4=7.70.8=0.01220=4.6 0.4=30.09=2.20.05=4.10.6=0.750.
2、4=230.4=0.32100=5.52=4.7310=023.5=0.254=7.20.5=3.3 0.5=600.8=3.40.6=0.1258=4-1.4=82-7.2=19+9.1=4.1-0.89=5.68+0.42=6.1-5.1=0.72- 0.24=0.8+0.18=0.89-0.25=1-0.98=0.048+0.52=5400=19.9+11.1=1871000=1+3.89=0.081 10=7510=0.96 8=0.8 7=1.5 7=1.32 8=0.7 8=10.3 2=50.6=0.9 0.3=3.5 0.2=2.01 0=100.05=0.13 7=0.21
3、100=0.7 4=0.05 4=40.3=430-250=0.17+0.06=1.02-0.09=7200800=0.17+0.6=0.83-0.6=17300=0.98-0.09=0.2+0.78=6000.7=10.2+0.02=0.15+0.7=670+250=10.2+0.2=9.2-6=28500500=3.2-3.2=3.7+2.3=25100=3.2-0.32=2+2.8=380-290=0.35+0.5=0.35+0.63=350070=3.1+3=3.8+0.38=7500250=3.8+1=0.95-0.05=450+780=3.1+0.3=3+0.3=6309=4.5-
4、0.4=9.5-5=3309=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=23100=9.8-4.8=48040=0.53 100=5.1+2.3=12580=0.078 10=0.52+0.4=7012=0.25 100=3.4-2.8=0.6-0.37=0.052 10=10+0.08=1-0.75=0.5 1000=0.82+0.3=13.5+6.5=3.05 100=1.2-0.8=21.6-12.6=63100=0.83-0.5=0.76+0.1
5、4=801000=2.7+0.4=0.72-0.43=30100=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=5.8-3.6=0.52+0.4=6.45+5.5=4.5-1.3=3.4-2.8=9.53-1.53=8.8-6.7=10+0.08=9.5-7.3=7.2+0.8=7.82+0.3=8.8-6.7=9.5-7.3=1-0.95=3.4-2.8=0.96-0.35=9.53-1.53=0.25+0.75=1.2-0.8=0.83-0.5=2.7+0=
6、12.5 8=2.3 4=3.25 0=0.4 50=300.1=2.6 3=4.1 2=30.350.2=7.5 0.1=2.52=0.5 10=0.6 8=2.8 10=0.7 0.8=5.6+0.4=4.7+2.3=4.5 2=7.2 0.8=63.4=0.62-0.32=0.75 100=0.020.5=3.60.3=5.6 100=0.75 0.25=0.125 8=0.86 2=0.5628=0.36 0.4=0.7 9=3.624=0.8 1.1=46.7-3.8=12.84=5.213=1.64+4.1=1020=2415=0.350.6=4.7+2.3=4.5 2=6.92.
7、5=7.20.8=63.4=0.620.32=1.4 0.5=0.75100=0.020.5=3.6 0.3=6.37=5.6 100=0.750.25=0.125 8=4.80.3=0.962=0.5628=0.36 0.4=0.64 0.8=0.723.6=3.6 12=0.8 1.1=7.2+12.8=46.73.8=12.84=5.2 13=12.5 5=1.6441=1020=2415=8.65 10=0.350.6=3.080.01=4.95 1000=6.9 0.1=0.4 0.5=2.4 0.8=10.89=9.60.8=0.1082=4.950.9=9.650.1=0.325
8、100=2.58=0.560.7=0.125 4=3.28 0.1=3.90.13=7.2 0.1=0.010.1=1.2 0.8=0.07 0.7=12.5=1.250.8=3.20.04=01.7=41.4 0.5=1.55 0.5=3.15 0.7=1.860.2=1.04 0.8=0.38 0.1=1.36 0.2=1.16 0.4=0.12 0.6=0.27 0.9=0.48 0.2=8.730.9=0.72 0.3=0.46 0.1=0.22 0.2=3.45 0.5=4.62 0.6=1.92 0.4=0.9 0.3=5.11 0.7=0.35 0.1=3.92 0.8=4.32
9、 0.9=0.24 0.8=3.15 0.7=0.98 0.7=1.8 0.6=1.76 0.4=2.64 0.4=7.56 0.9=1.19 0.7=1.53 0.9=1.33 0.7=1.18 0.2=0.09 0.1=0.21 0.1=1.54 0.2=8.28 0.9=30.5=1.710.3=7.44 0.8=2.48 0.8=0.75 0.5=1.920.8=3.69 0.9=2.28 0.3=0.250.4=1.60.8=0.8 71.3281.570.7810.3 23.50.2 0.90.3 50.6100.05 0.1370.740.05412.5 80.4503.2502
10、.342.6 37.50.1 0.450.2 4.123.5 0.01 90.5 09.8 3.90.39 4.1 22.631.2587.50.1 10.06 0.90.3 90.5=2.50.4=103.52=8.21.8=0.20.4=0.224=0.9 0.52=3.991=40.3=300.1=50.350.2=10.08=4.85.2=2.010=2.45=1.258=2.5 412=10-1.8-7.2=7.827.2=2.199.1=10.10.89=6.80.42=0.8 0.18=0.720.24=8.15.1=0.890.25=10.98=0.480.52=0.540=0
11、.1258=5.6 1.4 0.281.4 0.1 0.5=3.88 0.4=0.21100=3.41.4=0.45 2.5 0.8 1.25 0.3 3.6 0. 30.3 100.07 0.3 1.4 0.0570.92 0.4 0.2 0.26 0.14 40.020.1 1.2 0.3 0.2 0.4 8.2 1.8 100-35.22 2.3 42.5 0.4 2.4 50.2243.25 00.90.52 3.99 103. 5212.5 8810 =1.470.7=0.43+3.57=0.9 0.8=10.5=0.96 3=16.510=0.56 100=3.78 100=40.
12、8 =3.215 100=0.8 10=4.08 100=1.10.2 =0.6 0.830.9=2.5 0.4=3.60.4=12.58=500.04=800.3 =1.19=0.165 1.78 2.2 =9.6 0.6 =1.2 0.5-0.4 =0.7 0.01=2.5 0.4 =123.9=1.25 81.25=6.6 0.66 =5.37 0+4.63 =3.9 2.03 4.2 3.5 61.6+2.4 0.3 =2.140.9 2.7 7.3=0.30.3=7.22.8 0.9 0.01 120.3=2.870.7 1340.960.3 1.5 0.470.25 2.50.7
13、0.8=82.5 161.65.61.01=80.25 0.360.64 64.32 164.20.1 72.8 0.8 8.44.2 （1.50.25 ） 422.5 4=13.8 9.9 2.4 2.5 0.05 0.8 2.56 0.37 1.25 0.8 0.5 122.5 1.23 33.2 1.6=3.53.5 319.628.8 2.2=0.75 40.50.8=8.4 0.2=1.6 0.2 7.2 0.3=2.80.3=0.9 0.15=1.8 0.4=5.5 0.55=0.08 100=2.2 0.11=5.46 4.54=12.5 0.8=0.35 0.3=1.45=2.
14、8 4=19.6 4=40.5=7.51.5=102.5=3.521=1.53=2.26=0.427=0.420.6=0.48 0.8=0.90.45=5.10.17=0.819=4.80.16=8.40.4=1.85=4.50.9=2.9100=1.50.03=4.40.11=9.616=10.01=4.25=30.5=6.1-0.5=0.38+4.2=03.89=0.60.2=6.44=7.2 0.9=4-0.18=0.30.1=0.12580=742.5=1.20.04=0.7+6.53=3.60.06=1.250.25=1-0.75=2.61.3=4.4+6.6=7.4-0.54=7.
15、820.1=0.51.6=8.47=15=0.4+0.26=2.56=5.46=0.0720=0.455=3.5-2.9=0.480.24=1.50.03=5.65+0.35=34=0.32.9=17.3-0.8=2.50.5=2.16-1.6=30.44=2.55=603.2=8.40.5=87-8.7=1.80.5=4.50.15=2.45=3.60.02=0.290.01=1.5+0.9=150.3=0.060.9=0.960.8=2.411=8.19=60.3+0.67=2.85=0.720.6=0.56=0.0010.1=187100=0.9+0.28=14=4.030.5=1.2+
16、0.08=7.20.09=0.134=0.30.2=1.20.4=0.611=0.450.15=0.25+0.5=150.3=102.5=5.8-0.9=3.42=0.481.2=4.3+6.9=1.650.3=12-1.1=1.4+2.6=12.44=12.54=9.50.5=52=9.1-1.9=0.360.9=05.4=2.54.4=3.063=6.6-6=7.64=320.5=0.25-0.19=0.40.01=20.32=12.5 0.8=640.8=3.2-2.3=600.2=84.160.8=5.4+6=0.65=3.38=0.3 0.3 100.07 0.31.4 3.25 00.120. 120.11 0. 110.11 0.1 1000.3