小学六年级数学题，求各位学霸！要过程，能简算的要简算！！！急急急！！！ 小学数学六年级 下面这些题，能简算的要简算，求过程啊大神们
\u5c0f\u5b66\u516d\u5e74\u7ea7\u6570\u5b66\u9898\uff0c\u80fd\u7b80\u7b97\u7684\u8bdd\u8981\u7b80\u7b97\uff0c\u6c42\u5b66\u9738\uff0c\u5fc5\u91c7\u7eb3\u3002\u6025\u7528!!!
=2/7-1/7+2/5
=1/7+2/5
=19/35
3.14×2.3+3.14×3.7
=3.14×（2.3+3.7）
=3.14×6
=18.84
12.5×（6.1+0.26）×8
=（12.5×8）×6.36
=100×6.36
=636
14/15×1/4+1/15÷4
=14/15×1/4+1/15×1/4
=（14/15+1/15）×1/4
=1×1/4
=1/4
930÷[1/2×（2/5+4/5）]
=930÷[1/2×6/5]
=930÷3/5
=1550
3又2/5×99+3.4
=3.4×99+3.4
=3.4×（99+1）
=3.4×100
=340
绛旓細鍥炵瓟锛100.420.78
绛旓細6.(1)800脳13/(13锛4锛3)锛520銕 800脳4/(13锛4锛3)锛160銕 800脳3/(13锛4锛3)锛120銕 (2)4.5脳520锛2脳120锛2680鍏 7. 77梅[3/(3锛5)锛20%]锛440椤 8. 5梅(15锛5)脳100%锛25 9. (1.5锛1/2)梅1/4锛4鏉 10. (485锛110脳2.5)梅60锛3.5灏忔椂 ...
绛旓細绗竴棰 鏌虫爲鐨勬５鏁版槸姒曟爲鐨勪簲鍒嗕箣浜岋紝灏辨槸姒曟爲鐨勬５鏁颁箻浠ヤ簲鍒嗕箣浜岋紝绗簩棰 鏌虫爲鐨勬５鏁版槸姒曟爲鐨勬５鏁板姞涓婃鏍戠殑妫垫暟鐨勪簲鍒嗕箣浜岋紝灏辨槸姒曟爲鐨勬５鏁扮殑浜斿垎涔嬩竷
绛旓細鍥炵瓟锛氫笁鐧鹃櫎浠ヤ簲鍒嗕箣涓绛変簬鍏崄 鐒跺悗涓夌櫨鍑忓幓鍏崄绛変簬浜岀櫨鍥涘崄杩欏氨鏄渶鍚庣殑缁撴灉
绛旓細2/7+1/5-1/7 =2/7-1/7+2/5 =1/7+2/5 =19/35 3.14脳2.3+3.14脳3.7 =3.14脳锛2.3+3.7锛=3.14脳6 =18.84 12.5脳锛6.1+0.26锛壝8 =锛12.5脳8锛壝6.36 =100脳6.36 =636 14/15脳1/4+1/15梅4 =14/15脳1/4+1/15脳1/4 =锛14/15+1/15锛壝1/4 ...
绛旓細3. 7*600=4200cm=42m 4. (3/4)锛(2/3)=9锛8 16*(9/8)=18 5. 绗竴涓瘮渚嬪悗椤瑰姞涓5锛屾瘮渚嬪彉鎴3锛9=1锛3=0.6锛1.8 绗簩涓悗椤瑰簲璇ュ姞 1.8-0.8=1
绛旓細鍏 1.12:5=3.6:x 12x=5x3.6=18 瑙ｅ緱锛歺=3/2 2.x:1/3=4:3 3x=4/3 瑙ｅ緱锛歺=4/9
绛旓細5姣3灏戝垎2浠4.8锛屼竴浠藉氨鏄2.4锛8浠藉氨鏄19.2鏄4/7锛岄偅涔堜竴鍏卞氨鏄紝33.6
绛旓細璁剧敳鏍″師鏈変汉鏁颁负6x锛屼箼鏍″師鏈変汉鏁颁负5x锛屽垯锛 鐢叉牎姣曚笟鍚庝汉鏁颁负6x-200锛屼箼鏍℃瘯涓氬悗浜烘暟涓5x-125 鏍规嵁棰樻剰锛屾湁锛 (6x-200)/(5x-125) = 8/7 瑙ｆ柟绋嬪緱锛歺=875 鍥犳锛岀敳鏍″師鏈変汉鏁颁负6x=5250浜猴紝涔欐牎鍘熸湁浜烘暟涓5x=4375浜恒
绛旓細鈶犺鍋氬x閬撻 8x-4脳(20-x)锛100 x=15.鈶¤鍘熸潵濂崇敓涓簒浜猴紝鐢风敓涓5/6x浜 5/6x=5/12脳锛坸+3+5/6x)x=18.鎵浠ョ幇鍦ㄥコ鐢=x+3=21浜恒傜敺鐢熶负5/6x=15浜 鈶㈣X鍒嗛挓鐩搁亣 (1/8+1/10)X=1 x=40/9鈮4鍒26绉
