求一道数学简算题2.5*4.6+0.25*46?
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2.5*4.6+0.25*46
=2.5×4.6+(0.25×10)×(46÷10)
=2.5×4.6+2.5×4.6
=2.5×(4.6+4.6)
=2.5×9.2
=23,11,2.5*4.6+0.25*46
=2.5*4.6+2.5*4.6
=2*2.5*4.6
=23,2,等于 23,2,=25*4.6+25*4.6
=25*9.2
=25*9+25*0.2
=225+5
=230
饿,请问一下您现在的年级,2,2.5*4.6+0.25*46
=2.5*4.6+2.5*4.6
=(2.5+2.5)*4.6
=5*4.6
=23,0,
=2.5×4.6+(0.25×10)×(46÷10)
=2.5×4.6+2.5×4.6
=2.5×(4.6+4.6)
=2.5×9.2
=23,11,2.5*4.6+0.25*46
=2.5*4.6+2.5*4.6
=2*2.5*4.6
=23,2,等于 23,2,=25*4.6+25*4.6
=25*9.2
=25*9+25*0.2
=225+5
=230
饿,请问一下您现在的年级,2,2.5*4.6+0.25*46
=2.5*4.6+2.5*4.6
=(2.5+2.5)*4.6
=5*4.6
=23,0,
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