小数加减法:1.8+3.9=3.7+8.4=5.6+1.4=2.9+4.5=2.8+4.7=脱式计算:4.6+2.7-3.131.7+2.3+4.928.1-3.9+1.636.6-2.4-1.93.4+1.6+2.9简便计算:(9.6+10.4)+1.110+9.6+10+0.4==9.4+10.6-101.4+1.4+2.256.8+43.2-10
小数加减法:1.8+3.9=3.7+8.4=5.6+1.4=2.9+4.5=2.8+4.7=脱式计算:4.6+2.7-3.131.7+2.3+4.928.1-3.9+1.636.6-2.4-1.93.4+1.6+2.9简便计算:(9.6+10.4)+1.110+9.6+10+0.4==9.4+10.6-101.4+1.4+2.256.8+43.2-10