(1)15×230+15×203,
=(230+203)×15,
=433×15,
=6495(元);
答:两个大栅的总造价是6495元.
(2)230×50+203×58,
=11500+11774,
=23274(元);
答:两个大棚的年收入一共是23274元.
(3)问题:两个大棚的每平方米的收入相差多少元?
58-50=8(元);
答:两个大棚的每平方米的收入相差8元.
(1)15×230+15×203,
=(230+203)×15,
=433×15,
=6495(元);
答:两个大栅的总造价是6495元.
(2)230×50+203×58,
=11500+11774,
=23274(元);
答:两个大棚的年收入一共是23274元.
(3)问题:两个大棚的每平方米的收入相差多少元?
58-50=8(元);
答:两个大棚的每平方米的收入相差8元.