四年级下册数学优化：107*25=？（用简便方法计算） 人教版数学四年级下册简便计算题，越多越好！越短越好！
\u5c0f\u5b66\u56db\u5e74\u7ea7\u6570\u5b66\u4e0b\u518c\uff0c\u7528\u7b80\u4fbf\u65b9\u6cd5\u8ba1\u7b97\u5982\u56fe
\u7b2c\u4e00\u7c7b\uff1a\u52a0
65+73+135 357+288+143 272+68+28
129+235+171+165 17+145+23+35 999+99+9+3
6+7+8+102+103+104 9998+3+99+998+3+9
\u7b2c\u4e8c\u7c7b\uff1a\u51cf
400-256-44 517-53-47 284-159-41
258-42-16 545-167-145 478-47-178
344-\uff08144+37\uff09 236-\uff08177+36\uff09
\u7b2c\u4e09\u7c7b\uff1a\u4e58
45\u00d74\u00d75 23 \u00d75\u00d72 25\u00d79\u00d74
8\u00d7\uff08125\u00d713\uff09 \uff08250\u00d7125\uff09\u00d7\uff084\u00d78\uff09
88\u00d7125 72\u00d7125 125\u00d764\u00d725
42\u00d7125\u00d78\u00d75 25\u00d74\u00d788\u00d7125
\u7b2c\u56db\u7c7b\uff1a\u4e58
\uff0812+50\uff09\u00d740 125\u00d7\uff0840-4\uff09 76\u00d7103
18\u00d7125 25\u00d744 42\u00d725
99\u00d79 99\u00d778
\u7b2c\u4e94\u7c7b\uff1a\u4e58
45\u00d737+37\u00d755 28\u00d721+28\u00d779 17\u00d723-23\u00d77
38\u00d746+64\u00d738 99\u00d732+32 46+46\u00d759
167\u00d72+167\u00d73+167\u00d75 39\u00d78+6\u00d739-39\u00d74
28\u00d7225-2\u00d7225-6\u00d7225
\uff0842+25\uff09\u00d7125+\uff0818+15\uff09\u00d7125
23\u00d72\u00d74+25\u00d74\u00d72+27\u00d71\u00d78+25\u00d78\u00d71
99\u00d722+33\u00d734
\u7b2c\u516d\u7c7b\uff1a\u9664
360\u00f74\u00f79 250\u00f75\u00f72 600\u00f712\u00f75
800\u00f75\u00f78 480\u00f75\u00f748 240\u00f75\u00f712
420\u00f735 2400\u00f725 7800\u00f7125
\u7b2c\u4e03\u7c7b\uff1a\u52a0\u51cf
92+99 197+102 354-108
405-99 127-98
323+189-123 248-86+48 672-36+64
\uff086467-832\uff09+\uff081832-1467\uff09 1530+\uff08592-530\uff09-192
\uff082+4+6+\u2026\u2026+98+100\uff09-\uff081+3+5+\u2026\u2026+97+99\uff09
\u7b2c\u516b\u7c7b\uff1a\u4e58\u9664
960\u00d746\u00f748 99000\u00f7121\u00d711 3702\u00d738\u00f71234
640\u00f7\uff0816\u00f74\uff09 1000\u00f7\uff08125\u00f74\uff09
\u7b2c\u4e5d\u7c7b\uff1a\u52a0\u51cf\u4e58\u9664
\uff0898+147\uff09\u00f749 \uff08230-23\uff09\u00f723 \uff08250-25\uff09\u00f725
1736\u00f728+1064\u00f728 125\u00d7\uff08860+240\u00f712\uff09
700+612\u00f712\u00d74 \uff0837+15\uff09\u00d785+1360
2005\u00d720062006-2006\u00d720052005
107×25＝100×25﹢10×25﹣3×25＝2675
（100+7）*25=2500+175=2675
绛旓細鎵浠ョ敳鐨勫伐浣滄晥鐜=1/20脳2/3=1/30 涔欑殑宸ヤ綔鏁堢巼=1/20脳1/3=1/60 鐢插崟鐙畬鎴愰渶瑕1/锛1/30锛=30澶 涔欏崟鐙畬鎴愰渶瑕1/锛1/60锛=60澶 鐢插崟鐙畬鎴愰渶瑕1000脳30=30000鍏 涔欏崟鐙畬鎴愰渶瑕550脳60=33000鍏 鐢蹭箼鍚堜綔瀹屾垚闇瑕侊紙1000+550锛壝20=31000鍏 寰堟槑鏄 鐢插崟鐙畬鎴愰渶瑕佺殑閽辨暟鏈灏 閫夋嫨鐢诧紝...
绛旓細1..0.36x1.5x0.4 2.. 0.05x3.2x40 3..3.78x0.5-0.65 4..13.4x0.24+3.98 5..3.8x41-3.8 6..0.3x2.5x0.4 7..0.78x101 8..1.2x2.5+0.8x2.5 9..9.8x25 10..0.8x630x0.125 11.198x0.51 12..2.5x3.7+6.3x2.5 85.07锛嶏紙15.3锛4.8锛+5.369 ...
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绛旓細鍥涘勾绾т笅鍐屾暟瀛绗竴鍗曞厓娴嬭瘯棰1 涓銆佸揩涔愬～绌恒(12鍒) 1.鍦ㄦ病鏈夋嫭鍙风殑绠楀紡閲,濡傛灉鍙湁鍔犲噺娉曟垨鑰呭彧鏈変箻闄ゆ硶,閮借( )鎸夐『搴忚绠;濡傛灉鏃㈡湁鍔犲噺娉,鍙堟湁涔橀櫎娉,瑕佸厛绠( )娉,鍐嶇畻( )娉;濡傛灉绠楀紡閲屾湁鎷彿,搴斿厛绠( )鐨,鍐嶇畻( )鐨勩 2.鍦ㄨ绠200脳5-(147+465)鏃,鍙互鍏堝悓鏃剁畻( )娉曞拰( )娉,鍐嶇畻...
绛旓細1,鍏ㄦ牎甯堢敓523浜哄弬鍔犳鏍戝姵鍔,濡傛灉70浜哄垎鎴愪竴缁,閭ｄ箞鏈澶氬鍒嗘垚鍑犵粍 2,鐢ㄧ數鑴戝綍鍏ヤ竴绡466涓瓧鐨勬枃绔,绾㈢孩姣忓垎閽熻兘褰曞叆60涓瓧,鑱仾7鍒嗛挓褰曞畬.璋佸綍鍏ュ緱蹇竴浜 3,鐜嬪ぇ鐖风殑鏋滃洯鏀惰幏鑻规灉358鍗冨厠,姊270鍗冨厠,鏉庡瓙196鍗冨厠.鑻规灉姣忕40鍗冨厠,姊ㄦ瘡绠30鍗冨厠,鏉庡瓙姣忕20鍗冨厠.绠椾竴绠:瑁呰繖鍑犵姘存灉,鍚勯渶瑕佸灏...
绛旓細鏁板瀛︾鍗犳湁鏄捐憲鐨勪竴甯箣鍦,鑰冨墠鍋氫唤娴嬭瘯棰樻湁鍒╀簬鎴戜滑浜嗚В鑷繁鐨勭煡璇嗗涔犳按骞炽備笅闈㈡槸鎴戜负澶у鏁寸悊鐨鍥涘勾绾т笅鍐屾暟瀛鏈熸湯娴嬭瘯棰,甯屾湜瀵瑰ぇ瀹舵湁鐢! 鍥涘勾绾т笅鍐屾暟瀛︽湡鏈祴璇曢涓 涓銆佸～绌恒(20鍒) 1銆0.35鐨勮鏁板崟浣嶆槸( ),瀹冩湁( )涓繖鏍风殑鍗曚綅. 2銆佹妸鈥1鈥濆钩鍧囧垎鎴100浠,鍏朵腑鐨23浠芥槸( )( ) ,涔熷彲浠ヨ〃绀轰负...
绛旓細灏忓鍥涘勾绾т笅鍐屾暟瀛鍙ｇ畻棰 瑕佹湁灏忔暟鍔犲噺娉曘佺畝渚胯绠(鍔犳硶缁撳悎寰嬨佸噺娉曟ц川銆佷箻娉曠粨鍚堝緥銆侀櫎娉曟ц川銆佷箻娉曞垎閰嶅緥銆佹媶鍒嗐佺己椤)銆佽繘鐜(渚:4.4鍘樼背=(44)...鈶8256梅258 鈶107脳39 鈶321脳109 鈶8897梅31 鈶22119梅219 鈶96脳315 鍥涖佺敤绠渚挎柟娉曡绠(18鍒) 鈶728+199 鈶637-201 鈶16脳25 鈶420梅35 ...
绛旓細鏁板浜屽勾绾т笅鍐鐭ヨ瘑鐐 1.琛ㄥ唴闄ゆ硶 (1) 骞冲潎鍒:姣忎唤鍒嗙殑涓鏍峰,鍙仛骞冲潎鍒嗐 (2) 骞冲潎鍒嗙殑涓ょ...107: 4 + (8 + 2 脳 6) 108: 4 + (8 + (2 脳 6)) 109: 4 + 8 +(2 脳 6) 110...2銆佷笁銆鍥涘勾绾鍚屽涓鍏辨敹闆嗘爲绉65鍗冨厠,涓夊勾绾у悓瀛︽敹闆6琚,姣忚5鍗冨厠,鍥涘勾绾ф敹闆嗕簡澶氬皯鍗冨厠? 3銆佺數瑙...
绛旓細鍥犳绛旀鏄堿锛115 7/5*5-2=5 5*4-1=19 19*3-0=57 57*2+1=115 115*1+2=117 瀹氫箟 鍔犳硶锛氭妸涓や釜鏁板悎骞舵垚涓涓暟鐨勮繍绠椼傚噺娉曪細鍦ㄥ凡鐭ヤ袱涓姞鏁扮殑鍜屼笌鍏朵腑鐨勪竴涓姞鏁帮紝姹傚彟涓涓姞鏁扮殑杩愮畻銆備箻娉曪細姹備袱涓暟涔樼Н鐨勮繍绠椼(1)涓涓暟涔樻暣鏁帮紝鏄眰鍑犱釜鐩稿悓鍔犳暟鍜岀殑绠渚胯繍绠椼(2)涓涓暟...
