问题
解答题
1.25×6.78+25×3.47+125×0.0382．
答案
1.25×6.78+25×3.47+125×0.0382，
=1.25×6.78+1.25×20×3.47+1.25×100×0.0382，
=1.25×6.78+1.25×69.4+1.25×3.82，
=1.25×（6.78+69.4+3.82），
=1.25×80，
=100．
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1.25×6.78+25×3.47+125×0.0382．
1.25×6.78+25×3.47+125×0.0382，
=1.25×6.78+1.25×20×3.47+1.25×100×0.0382，
=1.25×6.78+1.25×69.4+1.25×3.82，
=1.25×（6.78+69.4+3.82），
=1.25×80，
=100．