题目内容
24.6×4.6+24.6×4.4+24.6用简便方法计算应该是（ ）
分析：先把最后一个24.6分解成24.6×1，再根据乘法分配律计算．
解答：解：24.6×4.6+24.6×4.4+24.6，
=24.6×4.6+24.6×4.4+24.6×1，
=24.6×（4.6+4.4+1）．
故选：B．
=24.6×4.6+24.6×4.4+24.6×1，
=24.6×（4.6+4.4+1）．
故选：B．
点评：乘法分配律为：两个数的和与一个数相乘，可将它们与这个数分别相乘，再相加．
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