六年级数学上册口算题300道

1、.4.7+2.3= 4.52=7.52.5= 7.20.8=63.4=0.640.32= 1.40.5= 0.75100= 0.020.5= 3.60.3= 6.37= 5.6100=0.750.25= 0.1258= 4.80.3= 0.962= 0.5628= 0.360.4= 0.640.8= 0.723.6= 3.624= 0.81.1=7.2+12.8= 46.73.8=12.84= 5.213= 12.55= 1.6441= 1020= 2415= 8.6510= 0.356= 3.080.01= 4.95100= 6.90.1= 0.40.5=2.40.8= 10.89= 9.6

2、0.8= 1.082= 3.145=2.50.4= = 0= = 4= = 5= = = = 1= = = 0.9= 10=12= 14= = 15= = 1.25168= ()4= = = = = 15 8= = 4 （）24= 24.060.4= = ()30= 25= 6= 2.825122.5= 12.5322.5= 5= 45101= 6= 27018= 1.250.250.75= 71.4 72.80.8 0.770.33 （）12 1.258 100.9 8.20.540.46 = 26.2626= 7.9117.9= = = 0= 0.6 4.576.43= 1.250.250

3、.75= = 0= = 4= = 5= = = 2= 13= = 3= 36= = 56= 5= 18= =26= 2= = = 24= = = = 8= = 15= = = 14= 1= 4= 31.95= = = 27=3= = 8= 3= 6= 0= 6.30.07= 26= = 1258= 6= = = 6= = 4= 0.5= = 100= 88= 4= 12= 254= 10= 4= = 60= = 12= 8= 11= 10= = = = = 0= 60.5= 8.44.2=5= = 2= = 5= 1= 12= 1= = 28= 0= = = = 245= = = = 1= 9

4、=636198= 3.60.36= 714= 1= 1= 1= 1= 1= 375= 90.9= （）24= 720.4= 720.4= 24= 0.2= 1= 2524 4.20.2 120.2 1.2582768= 910540= 1840= 91070= 780.98=38= 100.1= 0.812.5= 8.10.03= 1.50.5= 100.5 0.510 410210 71.472.80.8 0.770.33 0.6 1.258 100.9 8.20.540.46 =26.2626= 4.576.43= 7.9117.9= 3.1432= 33= 10.130= 20.22=

5、= 1.840.5= 1.51.50.2= 578216 85.23.25 3.2 81 22 0.9990.99 = 82.53.25 7 3005-899= 7.25+2.75= 9.898 0.12598 = = 5= = 22= = = 12= = 569-399= 3.2-0.5= += 12 = 25 = = 8.1= - =18.25-3.3= = 09.3= 453+198= 500.1= 81=0= 24 = 40.02= = = = += 0.258= 236+64= 7.80.5=4.3-0.5= 70.6= 13= 5.01-1.8= 0.999+0.99= += 10

6、-7.26= 75%+25%= 384= = + = = 1-0.25= 11+= 91070= 45.7100=93.14= 1.63+2.3= = 480 = 29-0.6= 0.85+0.15= 3.750.25=36= 0 = 1255=3123=8= 630.1= = -= 1.258= -= 3.68-0.82-0.18= 7.24= 99-33= 0.720.6= 24= 1-=2.54= 254= += +=322.5= 1.54= 18= = 8.40.4= 1+0.25= =9.7+0.3= 18= = 3.7-0.4-0.6= 578+216=3= = += 0= += 7= += =+= 3= 78+26= 0.38+4.2= 7= 18.25-3.3=3143.14= 3.25+