2.23×22×32×52=______.
2.23×22×32×52=______.
125×32×25=(______×______)×(______×______)
125×(4+8)=______×______+______×______.
填质数:21=______+______=______×______=______-______.
52°45′-32°46′=______°______′.
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___
计算:12-22+32-42+52-62+…-1002+1012=______.
计算:12-22+32-42+52-62+72-82+92-102=______.
0.87×99+0.87=______×______.
0.125=5:______=______%=______÷______.