557一(237一157)简便算式怎么列? 557-(34+157)的简便方法?
557-178-157\u600e\u6837\u7b80\u4fbf\u8ba1\u7b97\uff1f\u7b80\u4fbf\u8ba1\u7b97
557-178-157
=557-157-178
=400-178
=222
557-\uff0834+157\uff09
=557-34-157
=557-157-34
=400-34
=366
=577-237+157
=340+157
=497
这个题用到了减法的性质,括号前面是减号去括号里面要变号,也就是-157,就变成+157了,其他的照着记进行计算就行了。
557一(237一157)简便算式:
557一(237一157)
=557-237+157
=320+157=477
去掉小科号变成557-237+157。
等于320+157=477。
根据题意,解答如下
557-(237-157)
=557-(237-137-20)
=557-(100-20)
=557-80
=477
先计算237-157=80,再用550先减去80,得到结果是477。
绛旓細557-253-147 =557-(253+147)=557-400 =157
绛旓細鍘熷紡锛557-157-178 锛400-178 锛222
绛旓細绠渚胯绠楄繃绋嬫柟娉曞 瑙o細537-(237-148)=537-237+148 =300+148 =448
绛旓細杩欎釜灏辨槸鎶婃嫭鍙锋墦寮鍛銆備袱涓兘鍓寜閬撶悊鐢557鍏堝噺鍘157銆傝繖鏍峰氨寰楀埌浜嗐400鏁存暟鍟婏紝鐒跺悗400鏁存暟鍐嶅幓鎹341銆傚氨浼氬緱鍒59銆
绛旓細557-锛34+157锛=557-34-157 =557-157-34 =400-34 =366
绛旓細鍥
绛旓細鍥
绛旓細瑙o細鍘熷紡=557-锛400-3锛=557-400+3 =157+3 =160 鎴 鍘熷紡=557-锛357+40锛=557-357-40 =200-40 =160
绛旓細539 - (157 + 239)= 539 - 239 - 157 = 300 - 157 = 143
绛旓細杩愮敤鍑忔硶鐨勬ц川锛氫竴涓暟杩炵画鍑忓幓鍑犱釜鏁帮紝绛変簬杩欎釜鏁板噺杩欏幓鍑犱釜鏁扮殑鍜屻876-237-167 =876-锛237+167锛=876-404 =472