55×12+54×20得數(shù)是比55×12+54×10得數(shù)大54.…
×
×
分析:根據(jù)整數(shù)四則混合運(yùn)算的順序,按照整數(shù)四則運(yùn)算的計(jì)算法則,分別計(jì)算出兩個(gè)算式的結(jié)果,然后進(jìn)行比較即可.
解答:解:55×12+54×20,
=660+1080,
=1740;
55×12+54×10,
=660+540,
=1200;
1740-1200=540;
故答案為:×.
點(diǎn)評(píng):此題考查的目的是掌握整數(shù)四則混合運(yùn)算的順序及它們的計(jì)算法則,掌握整數(shù)大小比較的方法.
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