13.35-4.68+2.65简便计算.
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13.35-4.68+2.65简便计算.
13.35-4.68+2.65简便计算.
13.35-4.68+2.65简便计算.
13.35-4.68+2.65
=(13.35+2.65)-4.68
=16-4.68
=11.32
=13.35+2.65-4.68
=16-4.68
=11.32
=(13.35+2.65)-4.68
=16-4.68
=11.32