0.87×101 简便运算是12.5×4.7×0.
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0.87×101 简便运算是12.5×4.7×0.
0.87×101 简便运算
是12.5×4.7×0.
0.87×101 简便运算是12.5×4.7×0.
=0.87*(100+1)
=0.87*100+0.87*1
=87.87
=====
=12.5*0.8*4.7
=10*4.7
=47
0.87×101 简便运算是12.5×4.7×0.
0.87×101 简便运算
是12.5×4.7×0.
0.87×101 简便运算是12.5×4.7×0.
=0.87*(100+1)
=0.87*100+0.87*1
=87.87
=====
=12.5*0.8*4.7
=10*4.7
=47