计算
$4×7.8=$
$9.34×0.2=$
$4-0.6÷0.6=$
$2.9÷0.1=$
$2.05×0.4=$
$7.5+2.5×4=$
$8.065÷10=$
$0.31×20=$
$26.4-3.7-6.3=$
$4.2+23.4=$
$7.8÷3=$
$4.2-4.2÷7=$
$24×0.5=$
$0.82÷0.2=$
$840÷0.25÷4=$
$0.38×0.5=$
$12.4×0.3=$
$0.8÷2×0.6=$
$100-20.5=$
$7.8-4.35=$
$36-0.2-0.8=$
$6.5÷0.65=$
$2.4+0.5=$
$2+0.2×0.5=$
$0.37×0.4=$
$1.1×0.4=$
$2×0.8-1.2=$
$7.3×0.4=$
$5.25÷5=$
$2.4×101-2.4=$
$0.28÷0.7=$
$6.5×0.3=$
$4×0.5+4.3=$
$5.6÷7=$
$4.3×2=$
$7.8+2.5+2.2=$
$3.2÷8=$
$0.12×7=$
$4.5-0.9-0.1=$
$5×6.4=$
$3.2÷0.8=$
$5.6×99+5.6=$
$9.6÷0.3=$
$0.45×2=$
$13.4-2.5-7.5=$
$14.8+5.2=$
$0.12×5=$
$2.4×99+2.4=$
$0.24×0.5=$
$7.2÷0.6=$
$4.3+12.6+5.7=$
$10-2.7=$
$0.65×2=$
$12-2.4-7.6=$

$4×7.8=31.2$
$9.34×0.2=1.868$
$4-0.6÷0.6=3$
$2.9÷0.1=29$
$2.05×0.4=0.82$
$7.5+2.5×4=17.5$
$8.065÷10=0.8065$
$0.31×20=6.2$
$26.4-3.7-6.3=16.4$
$4.2+23.4=27.6$
$7.8÷3=2.6$
$4.2-4.2÷7=3.6$
$24×0.5=12$
$0.82÷0.2=4.1$
$840÷0.25÷4=840$
$0.38×0.5=0.19$
$12.4×0.3=3.72$
$0.8÷2×0.6=0.24$
$100-20.5=79.5$
$7.8-4.35=3.45$
$36-0.2-0.8=35$
$6.5÷0.65=10$
$2.4+0.5=2.9$
$2+0.2×0.5=2.1$
$0.37×0.4=0.148$
$1.1×0.4=0.44$
$2×0.8-1.2=0.4$
$7.3×0.4=2.92$
$5.25÷5=1.05$
$2.4×101-2.4=240$
$0.28÷0.7=0.4$
$6.5×0.3=1.95$
$4×0.5+4.3=6.3$
$5.6÷7=0.8$
$4.3×2=8.6$
$7.8+2.5+2.2=12.5$
$3.2÷8=0.4$
$0.12×7=0.84$
$4.5-0.9-0.1=3.5$
$5×6.4=32$
$3.2÷0.8=4$
$5.6×99+5.6=560$
$9.6÷0.3=32$
$0.45×2=0.9$
$13.4-2.5-7.5=3.4$
$14.8+5.2=20$
$0.12×5=0.6$
$2.4×99+2.4=240$
$0.24×0.5=0.12$
$7.2÷0.6=12$
$4.3+12.6+5.7=22.6$
$10-2.7=7.3$
$0.65×2=1.3$
$12-2.4-7.6=2$

把10张卡片放入纸袋中，任意摸一张，要使摸出3的可能性最大，摸出4的可能性最小，卡片上的数字只能是2、3或4，请你填一填

3、3、3、3、3、3、2、2、2、4
答：卡片上的数字为6个3、3个2、1个4（答案不唯一，满足写有数字3的卡片数量最多，写有数字4的卡片数量最少，总卡片数为10即可）。