四年级上册数学858÷39的笔算 858÷39例竖式
858\u00f739\u7528\u7ad6\u5f0f\u8ba1\u7b97\uff1f858\u00f739\u5217\u7ad6\u5f0f\u5982\u4e0b\uff1a
\u89e3\u6790\uff1a\u5148\u4ece\u88ab\u9664\u6570\u7684\u9ad8\u4f4d\u9664\u8d77\uff0c\u9664\u6570\u662f\u4e24\u4f4d\u6570\uff0c\u5c31\u770b\u88ab\u9664\u6570\u7684\u524d\u4e24\u4f4d\u300285\u9664\u4ee539\u7b49\u4e8e2\uff0c\u55462\u5199\u5728\u5341\u4f4d\u4e0a\u3002\u7136\u540e\u7528\u5f53\u524d\u88ab\u9664\u6570\u51cf\u4e58\u79ef\uff0c85\u51cf78\u7b49\u4e8e7\u3002
\u4f59\u65707\u548c\u8f88\u51fa\u6570\u4e2a\u4f4d\u4e0a\u76848\u7ec4\u621078\u9664\u4ee539\u7b49\u4e8e2\uff0c\u55462\u5199\u5728\u4e2a\u4f4d\u4e0a\uff0c\u7136\u540e\u7528\u5f53\u524d\u88ab\u9664\u6570\u51cf\u4e58\u79ef\uff0c78\u51cf78\u7b49\u4e8e0\u3002
\u6240\u4ee5\uff1a858\u9664\u4ee539\u7684\u5f97\u6570\u5c31\u662f22\u3002
\u6269\u5c55\u8d44\u6599
\u4e58\u6cd5\u7ad6\u5f0f\u8ba1\u7b97\u8981\u6ce8\u610f\u56db\u4e2a\u95ee\u9898\uff1a
1\u3001\u4e24\u4e2a\u6570\u7684\u6700\u540e\u4e00\u4f4d\u8981\u5bf9\u9f50\u3002
2\u3001\u5c3d\u91cf\u628a\u6570\u5b57\u591a\u7684\u6570\u5199\u5728\u4e0a\u9762\uff0c\u6570\u5b57\u5c11\u7684\u6570\u5199\u5728\u4e0b\u9762\uff0c\u4ee5\u51cf\u5c11\u4e58\u7684\u6b21\u6570\u3002
3\u3001\u5982\u679c\u4e24\u4e2a\u6570\u7684\u672b\u5c3e\u6709\u201c0\u201d\uff0c\u5199\u7ad6\u5f0f\u65f6\u53ef\u4ee5\u53ea\u5c06\u201c0\u201d\u524d\u9762\u7684\u6570\u7684\u6700\u540e\u4e00\u4f4d\u5bf9\u9f50\uff0c\u6700\u540e\u5728\u7ad6\u5f0f\u79ef\u7684\u540e\u9762\u6dfb\u4e0a\u4e24\u4e2a\u6570\u5171\u6709\u7684\u201c0\u201d\u7684\u4e2a\u6570\u3002
4\u3001\u5c0f\u6570\u4e58\u6cd5\u8981\u6839\u636e\u5c0f\u6570\u7684\u500d\u6570\u786e\u5b9a\u79ef\u7684\u5c0f\u6570\u70b9\u7684\u4f4d\u7f6e\u3002
\u9664\u6cd5\u7ad6\u5f0f\u6ce8\u610f\u4e8b\u9879\uff1a
1\u3001\u5217\u7ad6\u5f0f\u65f6\uff0c\u5546\u7684\u4e2a\u4f4d\u8981\u4e0e\u88ab\u9664\u6570\u7684\u4e2a\u4f4d\u5bf9\u9f50\u3002
2\u3001\u5546\u548c\u9664\u6570\u7684\u79ef\u5199\u5230\u88ab\u9664\u6570\u7684\u4e0b\u9762\u3002
3\u3001\u6700\u540e\u5728\u79ef\u7684\u4e0b\u9762\u753b\u6a2a\u7ebf\u3002
4\u3001\u6a2a\u7ebf\u4e0b\u5199\u4e0a\u88ab\u9664\u6570\u4e0e\u5546\u548c\u9664\u6570\u7684\u79ef\u7684\u5dee\u3002
858\u00f739\u5217\u7ad6\u5f0f\u5982\u4e0b\uff1a
\u89e3\u6790\uff1a\u5148\u4ece\u88ab\u9664\u6570\u7684\u9ad8\u4f4d\u9664\u8d77\uff0c\u9664\u6570\u662f\u4e24\u4f4d\u6570\uff0c\u5c31\u770b\u88ab\u9664\u6570\u7684\u524d\u4e24\u4f4d\u300285\u9664\u4ee539\u7b49\u4e8e2\uff0c\u55462\u5199\u5728\u5341\u4f4d\u4e0a\u3002\u7136\u540e\u7528\u5f53\u524d\u88ab\u9664\u6570\u51cf\u4e58\u79ef\uff0c85\u51cf78\u7b49\u4e8e7\u3002
\u4f59\u65707\u548c\u8f88\u51fa\u6570\u4e2a\u4f4d\u4e0a\u76848\u7ec4\u621078\u9664\u4ee539\u7b49\u4e8e2\uff0c\u55462\u5199\u5728\u4e2a\u4f4d\u4e0a\uff0c\u7136\u540e\u7528\u5f53\u524d\u88ab\u9664\u6570\u51cf\u4e58\u79ef\uff0c78\u51cf78\u7b49\u4e8e0\u3002
\u6240\u4ee5\uff1a858\u9664\u4ee539\u7684\u5f97\u6570\u5c31\u662f22\u3002
\u82e5ab=c\uff08b\u22600\uff09,\u7528\u79ef\u6570c\u548c\u56e0\u6570b\u6765\u6c42\u53e6\u4e00\u4e2a\u56e0\u6570a\u7684\u8fd0\u7b97\u5c31\u662f\u9664\u6cd5\uff0c\u5199\u4f5cc/b\uff0c\u8bfb\u4f5cc\u9664\u4ee5b\uff08\u6216b\u9664c\uff09\u3002\u5176\u4e2d\uff0cc\u53eb\u505a\u88ab\u9664\u6570\uff0cb\u53eb\u505a\u9664\u6570\uff0c\u8fd0\u7b97\u7684\u7ed3\u679ca\u53eb\u505a\u5546\u3002
\u88ab\u9664\u6570\u6269\u5927\uff08\u7f29\u5c0f\uff09n\u500d\uff0c\u5546\u4e5f\u76f8\u5e94\u7684\u6269\u5927\uff08\u7f29\u5c0f\uff09n\u500d\u3002\u9664\u6570\u6269\u5927\uff08\u7f29\u5c0f\uff09n\u500d\uff0c\u5546\u76f8\u5e94\u7684\u7f29\u5c0f\uff08\u6269\u5927\uff09n\u500d\uff09\u3002
\u5728\u6574\u6570\u7684\u9664\u6cd5\u4e2d\uff0c\u53ea\u6709\u80fd\u6574\u9664\u4e0e\u4e0d\u80fd\u6574\u9664\u4e24\u79cd\u60c5\u51b5\u3002\u5f53\u4e0d\u80fd\u6574\u9664\u65f6\uff0c\u5c31\u4ea7\u751f\u4f59\u6570\uff0c\u53d6\u4f59\u6570\u8fd0\u7b97:a mod b = c(b\u4e0d\u4e3a0) \u8868\u793a\u6574\u6570a\u9664\u4ee5\u6574\u6570b\u6240\u5f97\u4f59\u6570\u4e3ac\uff0c\u59827\u00f73 = 2 ......1
\u6269\u5c55\u8d44\u6599\uff1a\u6574\u6570\u9664\u6cd5\u7684\u8fd0\u7b97\u6cd5\u5219
1\u3001\u4ece\u88ab\u9664\u6570\u7684\u6700\u9ad8\u4f4d\u8d77\uff0c\u53d6\u51fa\u548c\u9664\u6570\u4f4d\u6570\u76f8\u540c\u7684\u6570(\u5982\u679c\u53d6\u51fa\u7684\u6570\u5c0f\u4e8e\u9664\u6570\uff0c\u5219\u8981\u53d6\u51fa\u6bd4\u9664\u6570\u591a\u4e00\u4f4d\u7684\u6570) ,\u7528\u9664\u6570\u53bb\u9664\u5b83\uff0c\u5c31\u5f97\u5230\u5546\u7684\u6700\u9ad8\u4f4d\u6570\u548c\u4f59\u6570(\u4f59\u6570\u53ef\u80fd\u4e3a\u96f6) \u3002
2\u3001\u628a\u4f59\u6570\u5316\u4e3a\u4e0b\u4e00\u4f4d\u7684\u5355\u4f4d\uff0c\u52a0\u4e0a\u88ab\u9664\u6570\u8fd9-\u4f4d\u4e0a\u7684\u6570\uff0c\u518d\u7528\u9664\u6570\u53bb\u9664\u5b83(\u9664\u6570\u5c0f\u4e8e\u8be5\u6570\u65f6\u5546\u4e3a0)\uff0c\u5f97\u5230\u5546\u548c\u4f59\u6570\u8fd9\u6837\u7ee7\u7eed\u4e0b\u53bb\u76f4\u5230\u88ab\u9664\u6570\u4e0a\u7684\u6570\u5b57\u5168\u90e8\u7528\u5b8c\uff0c\u5c31\u5f97\u5230\u6700\u540e\u7684\u5546\u548c\u4f59\u6570\u3002
\u88ab\u9664\u6570\u548c\u5546\u5173\u7cfb
1\u3001\u88ab\u9664\u6570\u6269\u5927\uff08\u7f29\u5c0f\uff09n\u500d\uff0c\u5546\u4e5f\u76f8\u5e94\u7684\u6269\u5927\uff08\u7f29\u5c0f\uff09n\u500d\u3002
2\u3001\u9664\u6570\u6269\u5927\uff08\u7f29\u5c0f\uff09n\u500d\uff0c\u5546\u76f8\u5e94\u7684\u7f29\u5c0f\uff08\u6269\u5927\uff09n\u500d\uff09\u3002
绛旓細鏁板鏃ヨ浣滄枃 绡4 瀛︿範鏁板涓嶄粎鍜屾垜浠殑瀛︿範鎴愮哗鏈夊叧,鏇村彲浠ュ湪鐢熸椿涓粰鎴戜滑寰堝ぇ甯姪,鐢ㄦ暟瀛︽棩璁扮殑褰㈠紡璁板綍涓嬫潵涔熸槸涓涓緢濂藉湴绾康,鏁板缃戜负澶у鏁寸悊浜嗕竴绡鍥涘勾绾ф暟瀛鏃ヨ,渚涘ぇ瀹跺涔犲弬鑰冦 浠婂ぉ鎴戝湪鐢佃涓鐪嬪埌涓涓勾杞讳汉,涔颁釜浜斿厓鐨勮倝涓稿瓙涓,閭ｄ綅鍗栬倝涓稿瓙鐨勫彅鍙旂殑浠烽挶瀹氫綅0.5鍏冧竴涓,鍗栬倝涓稿瓙涓鏃舵ユ妸棰樼洰绠楅敊浜,浠...
绛旓細1.7= 51.2梅0.3 = 40.096梅0.03=3.2 84梅4.2= 201000脳0.756=7560.5脳100= 502.5脳1.47脳0.4= 1.470梅0.25= 01梅0.01= 1001.25脳8=103.8脳2= 7.67.2梅0.9=81.6脳0.2= 0.329.3梅0.3= 314梅0.4=100.45梅0.5=0.90.2梅0.01=205.8脳20=1160脳858=...
绛旓細X=200锛堝厓锛夋嫇灞曟彁楂 涓銆1銆丄 2銆丅 浜屻3銆1.5 4銆侊紙1锛3锛3锛5.8锛3锛3锛6 锛2锛夆憽 涓夈5銆侊紙1锛39锛22锛858 锛2锛38锛24锛912 锛3锛夛紙40-X锛夛紝锛20+2X锛夛紝锛40-X锛*锛20+2X锛夛紝锛4锛夛紙40-X锛*锛20+2X锛=1200 6銆0.6X+20=0.8X-15 X=175 7銆佸鍔10鍙 OK ...
绛旓細586-45脳81梅27 58-45脳80梅25 3.68梅4.6锛6.32 368梅46锛632 604脳24锛758 644脳14锛858 604脳24锛758 408脳59 478脳39 278脳39 478脳19 1. 3/7 脳 49/9 - 4/3 2. 8/9 脳 15/36 + 1/27 3. 12脳 5/6 鈥 2/9 脳3 4. 8脳 5/4 + 1...
绛旓細25)鏈5000澶氭牴鐗欑,鍙寜6绉嶈鏍煎垎鎴愬皬鍖.濡傛灉10鏍逛竴鍖,閭ｄ箞鏈鍚庤繕鍓9鏍.濡傛灉9鏍逛竴鍖,閭ｄ箞鏈鍚庤繕鍓8鏍.绗笁銆佸洓銆佷簲銆佸叚绉嶇殑瑙勬牸鏄,鍒嗗埆浠8,7,6,5鏍逛负涓鍖,閭ｄ箞鏈鍚庝篃鍒嗗埆鍓7,6,5,4鏍.鍘熸潵涓鍏辨湁鐗欑澶氬皯鏍?25)鏈変竴涓嚜鐒舵暟,鐢ㄥ畠鍒嗗埆鍘婚櫎63,90,130閮芥湁浣欐暟,3涓綑鏁扮殑鍜屾槸25.杩3涓...
绛旓細). (4)灏忕孩涓夋鑰冭瘯鐨勫钩鍧囨垚缁╂槸92鍒嗭紝宸茬煡绗竴娆″拰绗簩娆＄殑骞冲潎鎴 缁╂槸91锛屽ス鐨勭涓夋鎴愮哗鏄( )鍒. (5)鏃╀笂褰撲綘鑳屽澶槼鐨勬椂鍊欙紝浣犵殑鍓嶉潰鏄( )闈紝浣犵殑鍚庨潰鏄 ( )闈紝浣犵殑宸﹁竟鏄( )闈紝浣犵殑鍙宠竟鏄( )闈. (6)鍦ㄦ嫭鍙烽噷濉笂閫傚綋鐨勫崟浣嶈妗岄潰鐨勯潰绉害24( ) 榛戞澘闀4(...
绛旓細涓銆侊紙1锛363 锛2锛8005 锛3锛変笁鐧 锛4锛夊钩鏂圭背鍘樼背 锛5锛350.35 锛6锛256 锛7锛夛紲锛烇紳锛 锛8锛9锛00 锛9锛変笢鍖楀崡涓滃崡 锛10锛18 浜屻1锛75032240073500200800 0.630020 2.5403024122鈥︹3 3.鈶48鈶300鈶5100鈶71 涓夈侊紙1锛夆憽锛2锛夆憿锛3锛夆憼锛4锛夆憼锛5锛夆憽 鍥涖伱椻垰鈭毭椕 浜斻...
绛旓細鏍规嵁鏂扮殑鍒嗛厤鏂规硶,涓绛夊濂栭噾涓:1078梅(3x+2脳2x+4x)脳4x=392 鍏15. 鎶1296鍒嗕负鐢层佷箼銆佷笝銆佷竵鍥涗釜鏁,濡傛灉鐢叉暟鍔涓2,涔欐暟鍑忓幓2,涓欐暟涔樹互2,涓佹暟闄や互2,鍒欏洓涓暟鐩哥瓑銆傛眰杩欏洓涓暟鍚勬槸澶氬皯?鎬濊矾:璁惧洓涓暟鐩哥瓑鏃朵负x,閭ｄ箞鐢叉槸x-2,涔欐槸x+2,涓欐槸x/2,涓佹槸2x鐢遍鎰:x-2+x+2+x/2+2x=12969x/...
绛旓細闄ゆ硶:336梅21 858梅39 918梅27 888梅37 645梅32涓夈佺畝渚胯绠楀拰鑴卞紡璁＄畻棰:146+155+254+45 1762-73-127 101脳28鍥涖佸簲鐢ㄩ:1銆佸疄楠屽皬瀛︿笁骞寸骇鏈4涓彮,姣忕彮40浜,鍥涘勾绾鎬讳汉鏁版瘮涓夊勾绾у19涓汉,涓夊勾绾у拰鍥涘勾绾т竴鍏辨湁澶氬皯浜? 2銆佸鏍℃湁72涓鐞,涔掍箵鐞冩瘮绡悆澶28涓,瓒崇悆姣旂鐞冨拰涔掍箵鐞冪殑鎬绘暟灏32涓,...
绛旓細327锛9664梅32脳25 727锛9660梅30脳25 586-45脳81梅27 58-45脳80梅25 3.68梅4.6锛6.32 368梅46锛632 604脳24锛758 644脳14锛858 604脳24锛758 408脳59 478脳39 278脳39 478脳19
