四年级小数口算题0.5+0.4=2.5-0.5=0.3×2=2+3.8=6-0.5=3.2-0.7=8×0.5=2-0.3=6.2+2.3=2-0.7=6.9-6.3=5.3-0.6=6.3+3=3.4-3.1=0.5+3=8.7+6=8.7+9=8-5.1=8.6-5.6=3.7-0.7=4.5-0.5=5.6+4.4=0.3×3=4.3+2.5=12.5+6=0.4×4=12.5+3.2=8.6+3=3.3+2.2=3+3.1=8.9+0.3=6.4-3.2=3-1.2=4.8-2.3=1-0.4=3.5+2.5=9.9-5.5=0.6×6=1-0.8=0.6+0.4=6×0.5=5×0.2=6.3+3.5=2.4+3.5=5×0.2=19.8-6.3=6.8-3.4=9.8-6.8=4.5-0.6=8+6.4=6.5+3.5=6.2+3.2=1.4+5.3=9×0.8=9-8.5=9.9-6.6=10-8.5=3.6+1.2=7-3.9=3+6.5=5.8+0.8=6.1+1.8=24+3.2=6.3+2.5=0-0.7=3×0.8=5-2.6=2.4+3.5=5.5-4.3=3+0.05=9-2.9=5+3.6=3.6-2.4=8.8-4.4=0.5+1.3=12+6.7=10+3.7=6.8-4.8=2.1+3.3=2.6+0.2=4.5-2.3=5+9.3=5.3+3.5=3-2.6=6+3.5=6.8+2.2=5.8+7=6.9-3.7=3.8+5=25+0.3=9-3.2=6-2.5=3.3+5.5=6-3.1=30+3.5=6.6-3.6=11+2.1=1-0.6=0×3=15+0.05=
