分数加减乘除口算题

1、.= = = = 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= 6.30.7= 26=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= = 0.2534= += = 2+= 3= 4= = 5= = 2=

2、8= 5= 36= =129= 5= 18= =38= 3= = =12= = = =8= = 15= = 34= 1= 4=52.57= 1= = 15=3= = 8= 3=6= 01.02= 5.40.09= 39= 5= 0= = 2 4= 4= 12 =5= 12 3 8 4= 4= 27 = 5= 18 3 8 2.450=3= 5= = =42= = 8.70.2= 40.25= 14= = 1.258= = 61.2= 4= = 5= 0= = 24= 12 = 5 = = 14= = = 1= = = = += -= 18= 3= = = += =1512= 12= 5= =2

3、8= 14= = =24= = -= =8= = = =2= 3= = =20= = 36= 2=6= = = 2=33= = 4= =4.3-2.5= 0.17+0.06= 1.02-0.09= 720800=0.17+0.6= 0.83-0.6= 17300= 0.98-0.09=0.2+0.78= 0.60.7= 10.2+0.02= 0.15+0.7=6.7+2.5= 10.2+0.2= 9.2-6.1= 8.55= 3.2-3.2= 3.7+2.3= 2.5100= 3.12-0.32=2+2.8= 3.8-2.9= 0.35+0.5= 0.35+0.63=3.570= 3.1+3=

4、 3.8+0.38= 7.525=3.8+1= 0.95-0.05= 4.5+7.8= 3.1+0.3= 3+0.3= 6.39= 4.5-0.4= 9.5-5=1.19= 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= 8.8-6.7= 1-0.95= 4.840= 53100= 5.1+2.3= 1.2580=0.7810= 0.52+0.4= 71.2= 0.25100=3.4-2.8= 0.6-0.37

5、= 0.05210= 10+0.08= 1-0.75= 0.51000= 7.82+0.3= 13.5+6.5=3.05100= 1.2-0.8= 21.6-12.6= 63100=0.83-0.5= 0.76+0.14= 801000= 2.7+0.4=0.72-0.42= 010.5= 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=

6、 8.8-6.7=10+0.08= 9.5-7.3= 7.2+0.8= 7.82+0.3=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+0.4= 0.7711=3.5610= 0.97= 30.55= 80.043=5.30.1= 41.221= 5.660.2= 8.40.7=50198= 0.19.02= 110100= 1.019=3.110= 1257125= 0.655= 0.17=32.50.5= 2.580.2= 0.77.32= 480199=630.7= 41.8= 0.34.44= 2.017=108= 0.87.62= 0.128= 4.20.1=1.63= 1.20.6= 100200= 6.20.3=0.60.7= 2.870= 0.90.4= 2.170.1=52.1= 2.540.5= 500.04 = 3.40.1=6.93= 1002.50.4= 8205= 0.81.2515= 6= = = 6= = 4= 0.5= = 10