.用递等式计算,能简便的要写出简便过程(就是能简便的简便)2.5×(6+9.728÷3.2) 35.6-1.8+4.4-7.2 0.25×3.2×12.513.7×0.25-3.7÷4 不要全部老实计算啊一楼的虽然速度快,但最后一题算错了,
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![.用递等式计算,能简便的要写出简便过程(就是能简便的简便)2.5×(6+9.728÷3.2) 35.6-1.8+4.4-7.2 0.25×3.2×12.513.7×0.25-3.7÷4 不要全部老实计算啊一楼的虽然速度快,但最后一题算错了,](/uploads/image/z/3995683-43-3.jpg?t=.%E7%94%A8%E9%80%92%E7%AD%89%E5%BC%8F%E8%AE%A1%E7%AE%97%2C%E8%83%BD%E7%AE%80%E4%BE%BF%E7%9A%84%E8%A6%81%E5%86%99%E5%87%BA%E7%AE%80%E4%BE%BF%E8%BF%87%E7%A8%8B%EF%BC%88%E5%B0%B1%E6%98%AF%E8%83%BD%E7%AE%80%E4%BE%BF%E7%9A%84%E7%AE%80%E4%BE%BF%EF%BC%892.5%C3%97%EF%BC%886%2B9.728%C3%B73.2%EF%BC%89+35.6-1.8%2B4.4-7.2+0.25%C3%973.2%C3%9712.513.7%C3%970.25-3.7%C3%B74+%E4%B8%8D%E8%A6%81%E5%85%A8%E9%83%A8%E8%80%81%E5%AE%9E%E8%AE%A1%E7%AE%97%E5%95%8A%E4%B8%80%E6%A5%BC%E7%9A%84%E8%99%BD%E7%84%B6%E9%80%9F%E5%BA%A6%E5%BF%AB%EF%BC%8C%E4%BD%86%E6%9C%80%E5%90%8E%E4%B8%80%E9%A2%98%E7%AE%97%E9%94%99%E4%BA%86%EF%BC%8C)
.用递等式计算,能简便的要写出简便过程(就是能简便的简便)2.5×(6+9.728÷3.2) 35.6-1.8+4.4-7.2 0.25×3.2×12.513.7×0.25-3.7÷4 不要全部老实计算啊一楼的虽然速度快,但最后一题算错了,
.用递等式计算,能简便的要写出简便过程(就是能简便的简便)
2.5×(6+9.728÷3.2) 35.6-1.8+4.4-7.2 0.25×3.2×12.5
13.7×0.25-3.7÷4
不要全部老实计算啊
一楼的虽然速度快,但最后一题算错了,
.用递等式计算,能简便的要写出简便过程(就是能简便的简便)2.5×(6+9.728÷3.2) 35.6-1.8+4.4-7.2 0.25×3.2×12.513.7×0.25-3.7÷4 不要全部老实计算啊一楼的虽然速度快,但最后一题算错了,
2.5×(6+9.728÷3.2)
=2.5×(6+3.04)
=2.5×9.04
=22.1
35.6-1.8+4.4-7.2
=(35.6+4.4)-(1.8+7.2)
=40-10
=30
0.25×3.2×12.5
=(0.25×0.4)×(8×12.5)
=0.1×100
=10
13.7×0.25-3.7÷4
=3.425-0.925
=2.5
2.5*(6+9.728÷3.2)
=2.5*(6+3.04)
=2.5*9.04
=22.1
35.6-1.8+4.4-7.2
=(35.6+4.4)-(1.8+7.2)
=40-10
=30
0.25*3.2*12.5
=(0.25*4)*(0.8*12.5)
=1*10
=10
13.7*0.25-3.7÷4
=13.7*(1/4)-3.7*(1/4)
=(13.7-3.7)*(1/4)
=30/4
=7.5