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4.5×0.6÷4.5×0.6=1
错误
分析:此题错误的原因在于没有按运算顺序进行计算,应按运算顺序从左往右依次计算,或调整一下运算顺序,先算除法,再算乘法,即原式=4.5÷4.5×(0.6×0.6),计算即可.
解答:4.5×0.6÷4.5×0.6,
=4.5÷4.5×(0.6×0.6),
=1×0.36,
=0.36.
故答案为:×.
点评:四则混合运算,应按运算顺序进行计算.
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