98.6-7/4+11.4-7/4,等于多少
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98.6-7/4+11.4-7/4,等于多少98.6-7/4+11.4-7/4,等于多少98.6-7/4+11.4-7/4,等于多少98.6-7/4+11.4-7/4=(98.6+11.4)-(7/4
98.6-7/4+11.4-7/4,等于多少
98.6-7/4+11.4-7/4,等于多少
98.6-7/4+11.4-7/4,等于多少
98.6-7/4+11.4-7/4
=(98.6+11.4)-(7/4+7/4)
=110-3.5
=106.5
=(98.6+11.4)-(7/4+7/4)
=110-3.5
=106.5