1.2×2.5+0.8×2.5=(______+______)×______.
125×(4+8)=______×______+______×______.
2.5平方米=______平方米______平方分米.
125×32×25=(______×______)×(______×______)
填质数:21=______+______=______×______=______-______.
根据1.2×4=0.6×8,可以写成比例______:______=______:______.
0.4:1.2=0.6:1.8可改写成______×______=______×______.
3.76°=______度 ______分 ______秒.
填上适当的质数.24=______+______=______+______=______+______.
巧填单位名称.1______-59______=1______;1______-9______=1______;1___
2.5小时=______小时______分
0.87×99+0.87=______×______.
分解因式:2ax+4bx-ay-2by=(______)+(______)=(______)(______).