(0.34×2400×25%+3×7+26.25÷)÷25.
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解:(0.34×2400×25%+3×7+26.25÷)÷25,
=(0.34×24×25+3×7+26.25×25)×,
=(8.16×25+22.125+26.25×25)×,
=8.16×25×+22.125×+26.25×25×,
=8.16×(25×)+22.125×+26.25×(25×),
=8.16+0.885+26.25,
=9.045+26.25,
=35.29.
解析分析:先把算式根据积不变的规律进行变形,把除法变成乘法,然后利用乘法分配律简算.
点评:本题较复杂,要注意分析式中数据,运用合适的简便方法计算.