Question

用簡便方法計算：24.6×4.6+246×0.44+24.6．

Answer 1

分析：根據(jù)數(shù)字特點，原式變?yōu)?4.6×4.6+24.6×4.4+24.6，運用乘法分配律簡算．

解答：解：24.6×4.6+246×0.44+24.6，
=24.6×4.6+24.6×4.4+24.6，
=24.6×（4.6+4.4+1），
=24.6×10，
=246．

點評：解答此題的關(guān)鍵是進行數(shù)字轉(zhuǎn)化，運用乘法分配律簡算．