六年级数学递等式计算题(急！！！！） 小学数学6年级上递等式计算题(最好加答案的){急需}

\u6025\uff01\uff01\u7ed9\u6211200\u9053\u516d\u5e74\u7ea7\u6570\u5b66\u9012\u7b49\u5f0f\u7684\u9898

0.64\u00d725\u00d77.8+2.2 =0.16*4*25*7.8+2.2 =0.16*100*7.8+2.2 =16*7.8+2.2 =127 2\u00f72.5+2.5\u00f72 =4/5+5/4 =2.05 194\uff0d64.8\u00f71.8\u00d70.9 =194-36*0.9 =194-32.4 =161.6 36.72\u00f74.25\u00d79.9 =8.64*9.9 =85.536 5180\uff0d705\u00d76 =5180-4230 =950 24\u00f72.4\uff0d2.5\u00d70.8 =10-2 =8 (4121+2389)\u00f77 =6510/7 =930 671\u00d715-974 =10065-974 =9091 469\u00d712+1492 =5628+1492 =7120 405\u00d7(3213-3189) =405*24 =9720 1.\u539f\u5f0f=16/25*25*39/5+2.2 =16*39/5+2.2 =127 2.\u539f\u5f0f=2\u00f75/2+5/2*1/2 =4/5+5/4 =0.8+1.25 =2.05 3.\u539f\u5f0f=194-64.8\u00f7(1.8\u00f70.9) =194-32.4 =161.6 4.\u539f\u5f0f=36.72\u00f717/4*9.9 =36.72*4/17*9.9 =8.64*9.9 =85.536 5.\u539f\u5f0f=5180-4230 =950 6.\u539f\u5f0f=10-2 =8 7.\u539f\u5f0f=6510\u00f77 =930 8.\u539f\u5f0f=10065-974 =9091 9.\u539f\u5f0f=5628+1492 =7120 10.\u539f\u5f0f=405*24 =9720 0.64*25*7.8+2.2 =4*25*.16*7.8+2.2 =100*.16*7.8+2.2 =16*7.8+2.2 =124.8+2.2 127 2\u30012/2.5+2.5/2 =.8+1.25 =2.05 10\u9664\u4e8e5/9+1/6X4(\u8981\u7528\u9012\u7b49\u5f0f~~~) = 10\u00d79/5+4/6 = 18+2/3 = 18\u53c82/3 7/9\u9664\u4e8e11/5+2/9X5/11 = 7/9\u00d75/11+2/9\u00d75/11 =\uff087/9+2/9\uff09\u00d75/11 = 1\u00d75/11 \uff1d5/11 (1/12+1/2-7/12)\u9664\u4e8e1/7 \uff1d (1/12+1/2-7/12)\u00d77 = 1/12\u00d77+1/2\u00d77-7/12\u00d77 = 7/12+7/2-49/12 \uff1d3\u53c81/2 1/6+4/5\u00d75/6=1/6+2/3=5/6 3-3/2\u00d710/21-2/7 (1/2-1/3+1/6\uff09\u00d724=0 4/5\u00d75/8+1/2)\u00f73/4=4/3

\u4f60\u53bb\u5c0f\u5b66\u6570\u5b66\u7f5112999\uff0c\u9ad8\u4e8e\u4e00\u5207

问题补充：0.64×25×7.8+2.2
=0.16*4*25*7.8+2.2
=0.16*100*7.8+2.2
=16*7.8+2.2
=127

2÷2.5+2.5÷2
=4/5+5/4
=2.05

194－64.8÷1.8×0.9
=194-36*0.9
=194-32.4
=161.6

36.72÷4.25×9.9
=8.64*9.9
=85.536

5180－705×6
=5180-4230
=950

24÷2.4－2.5×0.8
=10-2
=8

(4121+2389)÷7
=6510/7
=930

671×15-974
=10065-974
=9091

469×12+1492
=5628+1492
=7120

405×(3213-3189)
=405*24
=9720

1.原式=16/25*25*39/5+2.2
=16*39/5+2.2
=127
2.原式=2÷5/2+5/2*1/2
=4/5+5/4
=0.8+1.25
=2.05
3.原式=194-64.8÷(1.8÷0.9)
=194-32.4
=161.6
4.原式=36.72÷17/4*9.9
=36.72*4/17*9.9
=8.64*9.9
=85.536
5.原式=5180-4230
=950
6.原式=10-2
=8
7.原式=6510÷7
=930
8.原式=10065-974
=9091
9.原式=5628+1492
=7120
10.原式=405*24
=9720

以后不懂得都可以问我!!

1、0.64*25*7.8+2.2
=4*25*.16*7.8+2.2
=100*.16*7.8+2.2
=16*7.8+2.2
=124.8+2.2
127
2、2/2.5+2.5/2
=.8+1.25
=2.05
3、

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