(78.6-0,786*25+75%*21.4)/15*1997简算
问题描述:
(78.6-0,786*25+75%*21.4)/15*1997简算
答
(78.6-0.786×25十75%×21.4)÷15×1997
=(78.6-19.65+0.75×21.4)÷15×(2000-3)
=(78.6-19.65+16.05)÷15×(2000-3)
=(58.95+16.05)÷15×(2000-3)
=75÷15×(2000-3)
=5×(2000-3)
=5×2000-5×3
=10000-15
=9985.
答案为:9985.
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