五年级上册数学北师大版第二课的习题？ 北师大版五年级上册数学期末考试卷答案
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11\u00d70.8\uff08 \uff1c \uff0911 5.5\u00d70.1\uff08 \uff1d \uff095.5\u00f710 0.89\uff08 \uff1c \uff090.9
1\u00f70.9 \uff08 \uff1e \uff091 2\u00f73\uff08 \uff1c \uff090.67 4.6\u00f7100\uff08 \uff1c \uff094.6\u00d70.1
2\u3001\u4e00\u4e2a\u5e73\u884c\u56db\u8fb9\u5f62\u7684\u9762\u79ef\u662f5.6\u5e73\u65b9\u7c73\uff0c\u9ad8\u662f2\u7c73\uff0c\u5e95\u662f\uff08 2.8 \uff09\u7c73\u3002
3\u3001\u5143\u65e6\u671f\u95f4\uff0c\u67d0\u7535\u5668\u5546\u573a\u9500\u552e\u7a7a\u8c03\u03c7\u53f0\uff0c\u9500\u552e\u51b0\u7bb1\u7684\u53f0\u6570\u6bd4\u7a7a\u8c03\u53f0\u6570\u76842\u500d\u591a10\u53f0\uff0c\u8fd9\u4e2a\u7535\u5668\u5546\u573a\u9500\u552e\u51b0\u7bb1\uff08 2X\uff0b10 \uff09\u53f0\u3002
4\u3001\u67095\u5f20\u5206\u522b\u5199\u77405\u30016\u30017\u30018\u30019\u7684\u5361\u7247\uff0c\u5176\u4e2d6\u662f\u5e78\u8fd0\u53f7\u3002
\u2474 \u5c0f\u7ea2\u4efb\u610f\u62bd\u8d70\u4e00\u5f20\uff0c\u5979\u62bd\u52306\u7684\u53ef\u80fd\u6027\u662f\uff08 20% \uff09\uff0c\u5927\u4e8e6\u7684\u53ef\u80fd\u6027\u662f\uff08 60% \uff09\u3002
\u2475 \u82e5\u5c0f\u5409\u62bd\u8d70\u4e865\u548c9\uff0c\u5269\u4e0b\u7684\u7531\u5c0f\u7ea2\u62bd\uff0c\u5979\u62bd\u52306\u7684\u53ef\u80fd\u6027\u662f\uff08 33.3% \uff09\u3002
\u4e8c\u3001\u6211\u662f\u516c\u6b63\u7684\u6cd5\u5b98\uff08\u5bf9\u7684\u6253\u00d7\uff0c\u9519\u7684\u6253\u00d7\uff09\uff084\u5206\uff09
1\u3001\u03c7=1.8\u662f\u65b9\u7a0b4\u03c7+3.6=10.8\u7684\u89e3\u3002 \uff08 \u221a \uff09
2\u3001\u9762\u79ef\u76f8\u7b49\u7684\u4e09\u89d2\u5f62\uff0c\u5f62\u72b6\u4e00\u5b9a\u76f8\u540c\u3002 \uff08 \u00d7 \uff09
3\u3001\u5982\u679c\u9664\u6570\u5c0f\u4e8e1\uff0c\u90a3\u4e48\u5546\u6bd4\u88ab\u9664\u6570\uff080\u9664\u5916\uff09\u5927\u3002 \uff08 \u00d7 \uff09
4\u3001\u628a\u5e73\u884c\u56db\u8fb9\u5f62\u6728\u6846\u62c9\u6210\u957f\u65b9\u5f62\uff0c\u5468\u957f\u548c\u9762\u79ef\u90fd\u53d8\u5927\u4e86\u3002\uff08 \u00d7 \uff09
\u4e09\u3001\u795e\u673a\u5999\u7b97
1\u3001\u4e0b\u9762\u5404\u9898\u600e\u6837\u7b97\u7b80\u4fbf\u5c31\u600e\u6837\u7b97\u3002\uff08\u6bcf\u98983\u5206\uff09
5.4\u00d712.3+5.4\u00d77.7 42\u00d7101-42
=5.4*\uff0812.3+7.7\uff09 =42*\uff08101-1\uff09
=5.4*20 =42*100
=108 =4200
0.25\u00d73.2\u00d712.5
=(0.25*4)*(12.5*0.8)
=10*1
=10
\u56db\u3001\u8d70\u8fdb\u751f\u6d3b
1\u3001\u5217\u5f0f\u89e3\u7b54
\uff081\uff09\u4e00\u68396.4\u7c73\u957f\u7684\u5f69\u5e26\uff0c\u6bcf1.4\u7c73\u526a\u4e00\u6bb5\u5305\u624e\u4e00\u4e2a\u793c\u76d2\uff0c\u8fd9\u6839\u5f69\u5e26\u53ef\u4ee5\u5305\u624e\u51e0\u4e2a\u793c\u76d2\uff1f
6.4/1.4•4\uff08\u4e2a\uff09
\u7b54\uff1a\u4e00\u5171\u53ef\u4ee5\u5305\u624e4\u4e2a\u793c\u76d2.
\uff082\uff09\u5b66\u6821\u4e3e\u884c\u4e66\u753b\u7ade\u8d5b,\u56db\u3001\u4e94\u5e74\u7ea7\u5171\u670975\u4eba\u83b7\u5956,\u5176\u4e2d\u4e94\u5e74\u7ea7\u83b7\u5956\u4eba\u5c71\u6570\u662f\u56db\u5e74\u7ea7\u76841.5\u500d,\u56db\u3001\u4e94\u5e74\u7ea7\u5404\u6709\u591a\u5c11\u540c\u5b66\u83b7\u5956?(\u5217\u65b9\u7a0b\u89e3\u7b54)
\u89e3\uff1a\u8bbe\u56db\u5e74\u7ea7\u7684\u6709x\u4e2a\u4eba\u83b7\u5956\uff0c\u4e94\u5e74\u7ea7\u67091.5x\u4e2a\u4eba
1x+1.5x=75 30*1.5=45\u4eba
2.5x=75
x=75/2.5
x=30
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(76+120\uff09\u00d750=9800(\u5e73\u65b9\u7c73\uff09
9310/9800=0.95\uff08kg\uff09
绛旓細360梅2=180,360鏄2鐨勫嶆暟; 458梅2=229,458鏄2鐨勫嶆暟; 396梅2=198,396鏄2鐨勫嶆暟銆 瀹冧滑閮芥槸涓綅鏄0銆2銆4銆6銆8鐨勬暟,鑰屼笖閮芥槸2鐨勫嶆暟銆 甯:鎵浠2鐨勫嶆暟鏈夋庢牱鐨勭壒寰? 鐢:涓綅涓0銆2銆4銆6銆8鐨勬暟,閮芥槸2鐨勫嶆暟銆 甯:寰堝ソ,閭ｈ鍚屽浠仛涓鍋氫笅闈竴閬撻,鍒ゆ柇涓涓嬪摢涓槸2鐨勫嶆暟,鍝釜涓嶆槸,鎶婂畠...
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