一个长方体玻璃鱼缸,长12dm,宽5dm,高6dm。①制作这个玻璃鱼缸至少需要多少平方分米的玻璃?②在里面放水,使水面离鱼缸口1dm,需放水多少千克?(1立方分米的重1千克)(s:S,~2?1s0H2P0x;F0v5l3Z3r'G
算式:提示;i6O*M){)W;z7J(f+r(s:S,~2?1s0H2P0x;F0v5l3Z3r'G
答:需放水,v9G4{'o'?,X9V+^.s+S.h4q*x,U-c千克。(s:S,~2?1s0H2P0x;F0v5l3Z3r'G