计算下面各题,能简算的要简算.(1)975﹣384÷16×25 (2)÷(+)+1.65 (3)5.25+3﹣1.8+2(4)×1.5﹣1.5× (5)12.5×0.25×32 (6)36×(+)÷2%
竖式计算,带*的验算. 325+487 *402﹣275 684+139.
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用竖式计算并演算. 139+682= 701﹣573= 452﹣189=
684+235=验算: 902﹣637=验算: 527+343=验算: 485+87=验算:
(1)从熊猫馆到飞禽馆最远要走多少米? (2)老虎馆到熊猫馆比老虎馆到飞禽馆近多少米?