Question

55×10.43-104.3×0.1+104.3×4.6=

1043

．

Answer 1

分析：本題可先根據(jù)乘法算式的性質(zhì)將算式中乘法算式55×10.43變?yōu)?.5×404.3后，再根據(jù)乘法分配律進(jìn)行計(jì)算．

解答：解：55×10.43-104.3×0.1+104.3×4.6
=5.5×104.3-104.3×0.1+104.3×4.6，
=（5.5-0.1+4.6）×104.3，
=10×104.3，
=1043．
故答案為：1043．

點(diǎn)評(píng)：在運(yùn)用運(yùn)算定律進(jìn)行簡(jiǎn)算時(shí)，可先根據(jù)式中數(shù)據(jù)的特點(diǎn)以式中的數(shù)據(jù)做適當(dāng)?shù)淖儎?dòng)，然后再運(yùn)用合適的運(yùn)算定律計(jì)算．