分数乘除法口算题

分数乘除法口算题= 12=3=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= 1=9=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= = =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= += 10-7.26= 0.25+0.75=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= 3.2-0.5= 分数混合运算及简便运算2