12:20=______:4=______%=______(填小数)
125×(4+8)=______×______+______×______.
填质数:21=______+______=______×______=______-______.
1小时15分=______小时(填小数)=______小时(填分数).
(填小数)15分=______小时; 7小时39分=______小时.
125×32×25=(______×______)×(______×______)
填上适当的质数.24=______+______=______+______=______+______.
巧填单位名称.1______-59______=1______;1______-9______=1______;1___
______+______=orange _____可以填什么英语?
用小数表示3.14×10-4=______.
4时32分=______时(填分数)
2.2又8分之3=____%=_____(小数);3.02%=______(小数)=______(分数)
______÷______=34