7.52×125+4.45×12.5+3.5×1.25=________．

1000
分析：7.52×125+4.45×12.5+3.5×1.25，首先根據(jù)積的變化規(guī)律將原式轉(zhuǎn)化為：7.52×125+0.445+125+0.035×125，然后運用乘法分配律進(jìn)行簡算．
解答：7.52×125+4.45×12.5+3.5×1.25，
=7.52×125+0.445+125+0.035×125，
=（7.52+0.445+0.035）×125，
=8×125，
=1000．
故答案為：1000．
點評：此題考查的目的是理解乘法分配律的意義和積的變化規(guī)律，能夠靈活運用乘法分配律進(jìn)行簡便計算．
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