答案：图形的运动
(1)
$1.7+7.3=9$
$7.8-3.4=4.4$
$0.94-0.27=0.67$
$0.24+0.35=0.59$
$4.9+3.7=8.6$
$0.68-0.24=0.44$
$0.51-0.24=0.27$
$0.51+0.42=0.93$
$0.35+0.48=0.83$
$0.67-0.14=0.53$
$5.4-2.8=2.6$
$7.1-3.9=3.2$
$5.4+3.3=8.7$
$1.6+5.9=7.5$
$7.2-1.6=5.6$
$6.4+2.3=8.7$
$0.32+0.65=0.97$
$0.15+0.19=0.34$
$9.8-3.4=6.4$
$9.1-3.2=5.9$
$0.69-0.34=0.35$
$0.29+0.5=0.79$
$6.3+2.7=9$
$3.4+2.6=6$
$0.68+0.27=0.95$
$7.5-2.4=5.1$
$7-2.5=4.5$
图形的运动
(2)
$6.4+3.1=9.5$
$6.2-3.5=2.7$
$3.5+2=5.5$
$0.39-0.26=0.13$
$5.5+1.7=7.2$
$0.28+0.42=0.7$
$0.14+0.43=0.57$
$0.74-0.41=0.33$
$8-3.7=4.3$
$1.5+7.3=8.8$
$7.4+2.2=9.6$
$0.19+0.76=0.95$
$4.8-1.3=3.5$
$0.98-0.53=0.45$
$0.39+0.24=0.63$
$0.66+0.32=0.98$
$4.4+5.3=9.7$
$6-1.4=4.6$
$2.6+4.3=6.9$
$8.2-6.3=1.9$
$0.99-0.72=0.27$
$0.48-0.26=0.22$
$0.16+0.13=0.29$
$8.8-4.5=4.3$
$2.8+7=9.8$
$3.4-2.1=1.3$
$0.34+0.13=0.47$
图形的运动
(3)
$8.8-6.7=2.1$
$5.6-2.6=3$
$0.49+0.38=0.87$
$4.8+4.6=9.4$
$0.27+0.65=0.92$
$6.5-3.1=3.4$
$0.37-0.15=0.22$
$8.1-3.5=4.6$
$4.7+2.2=6.9$
$3.9+1.1=5$
$1.5+3.5=5$
$9.7-5.2=4.5$
$0.82-0.24=0.58$
$3-1.6=1.4$
$0.46+0.35=0.81$
$3.6+1.8=5.4$
$3.9+1.2=5.1$
$8.1-2.8=5.3$
$0.56-0.43=0.13$
$6.4-3.7=2.7$
$0.28+0.46=0.74$
$0.4-0.28=0.12$
$2.5+3.7=6.2$
$4-2.1=1.9$
$0.43+0.16=0.59$
$0.95-0.15=0.8$
$6+3.2=9.2$
图形的运动
(4)
$0.95-0.91=0.04$
$0.65-0.35=0.3$
$0.8-0.2=0.6$
$1-0.86=0.14$
$7.6-0.5=7.1$
$1-0.94=0.06$
$0.54-0.04=0.5$
$1-0.56=0.44$
$2-1.2=0.8$
$3.4-0.4=3$
$5.3-0.2=5.1$
$0.64-0.34=0.3$
$1-0.61=0.39$
$4-0.8=3.2$
$4.8-0.5=4.3$
$0.59-0.39=0.2$
$6.7-6=0.7$
$3.2-0.7=2.5$
$1-0.5=0.5$
$8.5-0.4=8.1$
$0.69-0.45=0.24$
$0.28-0.2=0.08$
$6.8-0.6=6.2$
$8-0.7=7.3$
$1-0.08=0.92$
$0.84-0.04=0.8$
$5-0.5=4.5$