展开全部
=17×(27+50+23)
=17×100
=1700
=17×100
=1700
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展开全部
17x27+170x5+17x23
=17x27+17x23+170x5
=17x(27+23)+170x5
=17x50+170x5
=17x50+17x10x5
=17x(50+50)
=17x100
=1700
望采纳,谢谢
=17x27+17x23+170x5
=17x(27+23)+170x5
=17x50+170x5
=17x50+17x10x5
=17x(50+50)
=17x100
=1700
望采纳,谢谢
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