题目内容
1.25×0.25×4×8=1.25×8+0.25×4=11________．
错误
分析：1.25×0.25×4×8，运用乘法交换律和结合律进行简算．
解答：1.25×0.25×4×8，
=（1.25×8）×（0.25×4），
=10×1，
=10．
故答案为：错误．
点评：此题考查的目的是使学生理解掌握乘法交换律、乘法交换律的意义，并且能够灵活运用乘法结交换律和结合律进行简便计算．
分析：1.25×0.25×4×8，运用乘法交换律和结合律进行简算．
解答：1.25×0.25×4×8，
=（1.25×8）×（0.25×4），
=10×1，
=10．
故答案为：错误．
点评：此题考查的目的是使学生理解掌握乘法交换律、乘法交换律的意义，并且能够灵活运用乘法结交换律和结合律进行简便计算．
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