18.9×1.5
5×1.89.
分析:根據(jù)題意,分別計算出結果,然后再比較大小即可.
解答:解:18.9×1.5=28.35,5×1.89=9.45,28.35>9.45,
所以,18.9×1.5>5×1.89.
故答案為:>.
點評:計算小數(shù)乘法要注意積當中的小數(shù)位數(shù).
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