05网免费提供各类练习与测试答案,请牢记零五网网址:05W.CC
3.
4. 铅笔
(4.6-3)÷(5-3)
=1.6÷2
=0.8(元)
钢笔
13.6-0.8=12.8(元)
橡皮
(4.6-0.8×5)÷2
=0.6÷3
=0.3(元)
http://m.ksjqmj.com/wunianjidaan/20969.html
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05网免费提供各类练习与测试答案,请牢记零五网网址:05W.CC
3.
4. 铅笔
(4.6-3)÷(5-3)
=1.6÷2
=0.8(元)
钢笔
13.6-0.8=12.8(元)
橡皮
(4.6-0.8×5)÷2
=0.6÷3
=0.3(元)
http://m.ksjqmj.com/wunianjidaan/20969.html
推荐访问