简便计算 1700-137-363+300
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简便计算 1700-137-363+300
简便计算 1700-137-363+300
简便计算 1700-137-363+300
1700-137-363+300
=1700-(137+363)+300
=1700-500+300
=1200+300
=1500
1700-(137+363)+300
=1700-500+300
=1500
1700-137-363+300
=1700-(137+363)+300
=1700-500+300
=1200+300
=1500
325+99
=325+100-1
=425-1
=424