1、 6.14+3.83= 7.93-1.64= 5.23-2.36= 3.44+3.36= 7.74-5.85= 9.35-4.74= 38.63-3.48= 1.16+4.77= 8.17-5.26= 2.26-0.86= 4.93+4.75= 76.55+4.68= 31.1+4.5= 31.9+3.4= 3.45+4.6= 4.45+54.5= 3.83+5.55= 2.75+1.3= 39.4-2.75= 67.3-1.26= 61.9+6.2= 67.1-6.6= 46.8-2.8= 47.6-2.15= 44.4+1.4= 1.7+9.66= 43.3+6.3= 64.4+8.67=
2、 55.5-1.9= 38.9-5.55= 0.70.9= 0.80.6= 8.243.76= 4.13.8= 0.782.2= 140.78= 14.60.34= 1.38.56= 0.80.55= 40.04= 10.03= 30.53.05= 0.80.45= 50.08= 3.250.75= 8.656.31= 107.64= 13.68.46= 0.991.1= 100.1= 1 .50.5 10.9 2.30.6 0.90.8 1.90.9= 3.5 2.4= 0.360.64 0.960.3 7.53.18= 0.510.37= 40.82= 5.264.75= 133.9= 8
3、.047.4= 0.680.06= 5.20.48= 10.73= 3.64.8= 0.780.28= 20.99.7= 100.09= 3.80.12= 0.010.1= 4.95.1= 4.70.47= 8.77.8= 26.7147.2= 801.621.9= 10019.2= 15.782.45= 33.49.48= 口算2.1+0.2= 0.3+0.7= 3.6+1.6= 7.5-0.5= 3.7-0.9= 2.1-0.2= 3.5+0.2= 1.2+0.3= 1.9-1.1= 4.5-2.3= 1.2+4.5= 13.5-0.6= 7.3+3.2= 5.6-3.9= 1.9+6.2
4、= 4.5-2.1= 1.5-0.5= 1-0.9= 2.3+0.6= 0.9+0.8= 1.9-0.9= 3.5-2.4= 0.6+0.4= 7.9-0.3= 4.1+0.8= 2.3+0.7= 3.4+1.2= 7.2-3.5= 3.7-2.9= 2.3-1.2= 6.5+1.2= 2.2+5.3= 2.3-1.7= 1.5+4.3= 1.1+4.7= 3.5-0.6= 7.4+1.2= 5.2-3.9= 8.9-6.2= 10.5-9.1= 1.7-0.5= 1.4-0.9= 2.3+0.8= 4.9+0.8= 1.3-0.9= 7.5-2.4= 2.6+0.4= 3.9-0.8= 7.
5、9+8.2= 5.2+5.5= 6.9+6.4= 5.4+6.7= 3.4+8.6= 5.9+4.3= 8.3+2.8= 2.8+8.9= 9.8-4.8= 6.8-4.4= 7.2-3.7= 8.4-6.6= 4.8-3.3= 5.8-4.8= 7.7-4.9= 6.1+2.6= 4.8-3.8= 8.7-5.3= 6.3+1.6= 8.7-5.5= 2.7+6.4= 1.7+7.3= 6.7-2.2= 5.7-3.9= 9.6-8.8= 5.6-2.7= 3.6+5.6= 7.6-3.7= 9.0-5.9= 4.9+0.5= 3.9+2.4= 4.9-1.3= 5.5+2.8= 8.6-3.7= 9.5-4.6= 3.5+5.1= 2.5+6.4= 7.5-2.7= 4.5+2.2= 3.5+1.9= 7.4-4.8= 5.4+5.5= 9.4-4.4= 4.4-2.3= 1.4+2.2= 2.3+4.9= 6.2+3.3= 3.9-2.4= 4.3+2.8= 7.3-5.7= 2.3-1.4= 3.3+2.2=
