几道数学题（四则混合运算）能简便的要简便！ 小学六年级数学四则混合运算题(用简便方法)
100\u9053\u56db\u5e74\u7ea7\u4e0b\u518c\u6570\u5b66\u56db\u5219\u6df7\u5408\u8fd0\u7b97\u9898125\u00f725\u00d76
(135+75)\u00f7(14\u00d75)
120-60\u00f75\u00d75
1024\u00f716\u00d73
(135+415)\u00f75+16
1200-20\u00d718
720-720\u00f715
(360-144)\u00f724\u00d73
240+480\u00f730\u00d72
225-10\u00d7(6+13)
(120\u00d72+120)\u00f79
164-13\u00d75+85
330\u00f7(65-50)
128-6\u00d78\u00f716
64\u00d7(12+65\u00f713)
19\u00d796-962\u00f774
10000-(59+66)\u00d764
5940\u00f745\u00d7(798-616)
(315\u00d740-364)\u00f77
12520\u00f78\u00d7(121\u00f711)
(2010-906)\u00d7(65+15)
(20+120\u00f724)\u00d78
106\u00d79-76\u00d79
117\u00f713+36\u00d715
3774\u00f737\u00d7(65+35)
540-(148+47)\u00f713
(308-308\u00f728)\u00d711
(10+120\u00f724)\u00d75
(238+7560\u00f790)\u00f714
21\u00d7(230-192\u00f74)
19\u00d796-962\u00f774
10000-(59+66)\u00d764
5940\u00f745\u00d7(798-616)
(315\u00d740-364)\u00f77
735\u00d7(700-400\u00f725)
1520-(1070+28\u00d72)
9405-2940\u00f728\u00d721
920-1680\u00f740\u00f77
690+47\u00d752-398
148+3328\u00f764-75
360\u00d724\u00f732+730
2100-94+48\u00d754
51+(2304-2042)\u00d723
4215+(4361-716)\u00f781
(247+18)\u00d727\u00f725
36-720\u00f7(360\u00f718)
1080\u00f7(63-54)\u00d780
(528+912)\u00d75-6178
\uff082001-1999\uff09\u00d72
999\u00d7999+1999=999\u00d7999+999+1000=999\u00d7\uff08999+1\uff09+1000
\u7b2c\u4e00\u9898\u6ca1\u770b\u660e\u767d
=3-1/3-1/9
=3-(3/9+1/9)
=23/9
2、15/16+(7/16-1/4)÷1/2
=15/16+3/16÷1/2
=15/16+6/16
=21/16
3、1/5÷[(2/3+1/5)*1/13]
=1/5÷[13/15*1/13]
=1/5÷1/15
=3
1、3-1/3-1/3÷3
=3-1/3-1/9
=3-(3/9+1/9)
=2又5/9
2、15/16+(7/16-1/4)÷1/2
=15/16+3/32
=33/32
3、1/5÷[(2/3+1/5)*1/13]
=1/5/[13/15*1/13]
=1/5/1/15
=3
绛旓細锛1锛3643-74+6357-76=9850 锛2锛39脳24+39脳46+39脳30=3900 锛3锛108脳35=3780 锛4锛345脳98=33810 锛5锛25脳64脳125脳5=1000000 锛6锛8500梅25=340 锛7锛94脳73+27脳94=9400 锛8锛125脳79=9875 锛9锛1.2脳99=118.8 锛10锛9梅0.25=36 锛11锛4.7脳5.9+5.2脳4.7-4....
绛旓細1.8脳2.58锛1.8脳1.42 3x+9=2718(x-2)=270 12x=300-4x 7x+5.3=7.4 3x梅5=4.8 30梅x+25=85 1.4脳8-2x=6 0.12脳 4.8梅0.12脳4.8 8/9 脳 15/36 + 1/27 75梅銆138梅锛100-54锛夈 85脳(95锛1440梅24)80400锛(4300锛870梅15) 240脳78梅锛154-115锛1437脳...
绛旓細27梅3脳7 3脳6梅9 25梅5脳8 45+8-23 63梅7脳8 24-8+10 28梅4脳7 35+24-12 48梅8脳9 9405-2940梅28脳21 920-1680梅40梅7 690+47脳52-398 203-135梅9 28+120脳8 97-12脳6+43 26脳4-125梅5 148+3328梅64-75 360脳24梅32+730 2100-94+48脳54 51+(2304-2042)脳23 ...
绛旓細鏁板棰鈥滃垎鏁颁箻娉鍥涘垯娣峰悎杩愮畻鈥 绛変簬浜屽垎涔嬩竴x210鍑忎笁鍒嗕箣涓x210鍔犲洓鍒嗕箣涓x210鍑忎簲鍒嗕箣涓x210鍔犲叚鍒嗕箣涓x210鍑忎竷鍒嗕箣涓x210; 绛変簬105-70+52.5-42+35-30; 绛変簬50.5 (涔樻硶鍒嗛厤寰) 50閬撳皬鏁扮偣 鍥涘垯娣峰悎杩愮畻 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...
绛旓細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 + 1/4 5. 6梅 3/8 鈥 3/8 梅6 6. 4/7 脳 5/9 + 3/7 脳 5/9 7. 5/2 -锛 3/2 + 4/5 锛8. 7/8 + 锛 1/8 + 1/9 锛9. 9 脳 5/6 + 5/6 10....
绛旓細1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4. 3/7 脳 49/9 - 4/3 5. 8/9 脳 15/36 + 1/27 6. 12脳 5/6 鈥 2/9 脳3 7. 8脳 5/4 + 1/4 8. 6梅 3/8 鈥 3/8 梅6 9. 4/7 脳 5/9 + 3/7 脳 5/9 10. 5/2...
绛旓細灏忓鍥涘勾绾鏁板涓嬪唽鑰冭瘯鏃剁畝渚胯绠楀彲浠ョ敤鍥涘垯杩愮畻鏉ヨВ绛斿悧? 鑲畾鏄敤鍥涘垯杩愮畻鐨勫熀鏈繍绠楁硶鍒欐潵璁＄畻,浣嗗繀椤昏繍鐢ㄤ氦鎹㈠緥,缁撳悎寰,绛夋柟娉曚娇寰楄绠楁槑鏄剧畝渚挎墠琛屻傛绠椾笉缁欏垎銆 鎬ラ渶50閬撳皬瀛﹀洓骞寸骇涓嬪唽绠渚胯绠棰樼洰 鐢ㄧ畝渚挎柟娉曡绠椼 1銆368+2649+1351 2銆 89+101+111 3銆24+127+476+573 4銆400-273-127 5銆327+...
绛旓細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 + 1/4 5. 6梅 3/8 鈥 3/8 梅6 6. 4/7 脳 5/9 + 3/7 脳 5/9 7. 5/2 -锛 3/2 + 4/5 锛8. 7/8 + 锛 1/8 + 1/9 锛9. 9 脳 5/6 + 5/6 10....
绛旓細绠渚胯绠楁柟娉曞涓 1銆佹彁鍙栧師寮: 36脳48+36脳54-72 2銆佽绠楄繃绋:=36脳48+36脳54-36脳2 =36脳(48+54-2)=36脳100 =3600 3銆佽绠楃粨鏋: 3600 4銆佽阿璋紝鏈熷緟鎮ㄧ殑閲囩撼锛
绛旓細1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4. 3/7 脳 49/9 - 4/3 5. 8/9 脳 15/36 + 1/27 6. 12脳 5/6 鈥 2/9 脳3 7. 8脳 5/4 + 1/4 8. 6梅 3/8 鈥 3/8 梅6 9. 4/7 脳 5/9 + 3/7 脳 5/9 10. 5/2...
