六年级上册数学，115页，全部，谢谢。 六年级上册数学苏教版115页答案

\u6c42\u516d\u5e74\u7ea7\u4e0a\u518c\u6570\u5b66115\u9875\u56fe\u7247

2\u3001\u5927\u8239\uff1a\uff086x8-38)\u00f7(6-4)=5(\u6761\uff09
\u5c0f\u8239\uff1a8-5=3\uff08\u6761\uff09
3\u3001\u5047\u8bbe\u5168\u662f\u7537\u751f\uff0c\u690d\u68113X12=36\uff08\u68f5\uff09\uff0c\u6bd4\u5b9e\u9645\u591a\u690d\u681136-32=4\uff08\u68f5\uff09\uff0c\u591a4\u68f5\u662f\u56e0\u4e3a\u5973\u751f\u88ab\u5047\u8bbe\u6210\u7537\u751f\u3002\u6240\u4ee5\uff0c
\u5973\u751f\uff1a\uff083X12-32\uff09\u00f7\uff083-2\uff09=4\uff08\u4eba\uff09
\u7537\u751f\uff1a12-4=8\uff08\u4eba\uff09

1.\u89e3\uff1a\u8bbe\u9f9f\u6709x\u53ea\uff0c\u5219\u9e64\u6709\uff0840-x\uff09\u53ea\u3002
4x+2\uff0840-x\uff09=112
4x+80-2x=112
2x=32
x=16
40-16=24\uff08\u53ea\uff09
\u7b54\uff1a\u9f9f\u670916\u53ea\uff0c\u9e64\u670924\u53ea\u3002
2.\u89e3\uff1a\u8bbe\u5927\u8239\u79df\u4e86x\u6761\uff0c\u5219\u5c0f\u8239\u79df\u4e86\uff088-x\uff09\u6761\u3002
6x+4\uff088-x\uff09=38
6x+32-4x=38
2x=6
x=3
8-3=5\uff08\u6761\uff09
\u7b54\uff1a\u5927\u8239\u79df\u4e863\u6761\uff0c\u5c0f\u8239\u79df\u4e865\u6761\u3002
3.\u89e3\uff1a\u8bbe\u7537\u540c\u5b66\u6709x\u4eba\uff0c\u5219\u5973\u540c\u5b66\u6709\uff0812-x\uff09\u4eba\u3002
3x+2(12-x)=32
3x+24-2x=32
x=8
12-8=4\uff08\u4eba\uff09
\u7b54\uff1a\u7537\u540c\u5b66\u67098\u4eba\uff0c\u5973\u540c\u5b66\u67094\u4eba\u3002

 

 

 

浜烘暀鐗鍏勾绾т笂鍐屾暟瀛涔︾115椤鍋氫竴鍋氱瓟妗
绛旓細2. 灏忚埞锛氾紙6脳8锛38锛壝凤紙6锛4锛=5锛堟潯锛夊ぇ鑸癸細8锛5=3锛堟潯锛3.鍋囪鍏ㄦ槸鐢风敓锛屾鏍3脳12=36锛堟５锛夋瘮鏍芥爲妫垫爲澶36锛32=4锛堟５锛夊4妫垫槸鍥犱负鎶婂コ鐢熷亣璁炬垚鐢风敓銆傚コ鐢燂細锛3脳12锛32锛壝凤紙3锛2锛=4锛堜汉锛夌敺鐢燂細12锛4=8锛堜汉锛

灏忓鍏勾绾т笂鍐屾暟瀛浜烘暀鐗堢115椤1.2.3棰樼敤鏂圭▼瑙ｇ瓟
绛旓細1.瑙ｏ細璁鹃緹鏈墄鍙紝鍒欓工鏈夛紙40-x锛夊彧銆4x+2锛40-x锛=112 4x+80-2x=112 2x=32 x=16 40-16=24锛堝彧锛 绛旓細榫熸湁16鍙紝楣ゆ湁24鍙2.瑙ｏ細璁惧ぇ鑸圭浜唜鏉★紝鍒欏皬鑸圭浜嗭紙8-x锛夋潯銆6x+4锛8-x锛=38 6x+32-4x=38 2x=6 x=3 8-3=5锛堟潯锛 绛旓細澶ц埞绉熶簡3鏉★紝灏忚埞绉熶簡5...

浜烘暀鐗鍏勾绾т笂鍐屾暟瀛涔︾115椤鍋氫竴鍋氱瓟妗
绛旓細2.灏忚埞锛氾紙6脳8锛38锛壝凤紙6锛4锛=5锛堟潯锛夊ぇ鑸癸細8锛5=3锛堟潯锛3.鍋囪鍏ㄦ槸鐢风敓,妞嶆爲3脳12=36锛堟５锛夋瘮鏍芥爲妫垫爲澶36锛32=4锛堟５锛夊4妫垫槸鍥犱负鎶婂コ鐢熷亣璁炬垚鐢风敓.濂崇敓锛氾紙3脳12锛32锛壝凤紙3锛2锛=4锛堜汉锛夌敺鐢燂細12锛4=8锛堜汉锛

灏忓6骞寸骇鏁板涔涓婂唽115椤绛旀鐢ㄦ柟绋
绛旓細1.瑙ｈ榫熸湁X鍙紝鍒欓工鏈夛紙40-X锛夊彧銆4X+锛40-X锛墄2=112 4X-2X+80=112 2X=112-80 X=16 40-16=24 璁鹃緹鏈16鍙紝鍒欓工鏈24鍙2.瑙ｈ澶ц埞绉熶簡X鏉★紝鍒欏皬鑸圭浜嗭紙8-X锛夋潯銆6X+锛8-X锛墄4=38 6X-4X+32=38 2X=38-32 X=3 8-3=5鏉 澶ц埞绉熶簡3鏉★紝灏忚埞绉熶簡5鏉°3.瑙ｈ鐢峰悓瀛...

灏忓6骞寸骇涓婂唽鏁板涔115椤鐨勭瓟妗
绛旓細鈶犮侀緹鏈16鍙紝楣ゆ湁24鍙傗憽銆佸ぇ鑸3鏉★紝灏忚埞5鏉°傗憿銆佺敺鐢8浜猴紝濂崇敓4浜恒

鍏勾绾т笂鍐屾暟瀛涔115椤绛旀 鐢ㄦ柟绋嬭В
绛旓細1.璁鹃緹鏈墄鍙紝楣ゆ湁锛40-x锛夊彧銆4x+2锛40-x锛=112 4x+80-2x=112

鍏勾绾т笂鍐屾暟瀛涔︾瓟妗115椤
绛旓細榫燂紙112+40*2锛/锛4-2锛=16 楣 40-16=24 灏忥紙6*8-38锛/6-4=5 澶8-5=3 濂筹紙3*12-32锛/锛3-2锛=4 鐢12-4=8

鑻忔暀鐗鍏勾绾т笂鍐屾暟瀛涔︾115椤绗6棰
绛旓細(300000-20000)/7=40000(km)绛旓細鍦扮悆璧ら亾鍛ㄩ暱澶х害40000鍗冪背銆

鍏勾绾ф暟瀛閲戠墝涓璇句竴缁涓p115椤 鐨勯鐩笁鍏冧竴娆℃柟绋
绛旓細璁 鐜扮埗姣嶅勾榫勫拰x宀 瀛愬コ骞撮緞鍜寉宀 鍏卞瓙濂硓浜 =銆 x=6y x-2*2=10(y-2z) x+12=3(y+6z) =銆 z=3 (x=84 y=14)

鍏勾绾ф暟瀛涔涓婂唽115椤绗簩棰
绛旓細鍙戜釜鐓х墖鍛

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