⒈ 250 2 200 3 300 5 30 5 20
⒉
⑴ 5
⑵
⑶
⒋ 2 3 23 2
⒊
⒈
⑴ 500
⑵ 450 40 85 98 260
⑶ 10 30 5 5 150 2
⒉
⑴ 5
⑵
⑶ 3 cm 19 9 cm 19
⑷ 8
⒈
⑴ 500
⑵ 120 1200 250
⑶ 9 2 5 2 15 10
⒉ 10
⒊
⒋ 0.3cm
⒌