25×25+4×4=25×4+25×4(對的打“√”,錯的打“×”)
錯誤
分析:根據(jù)整數(shù)四則混合運算的順序,分別求出25×25+4×4與25×4+25×4的結(jié)果,然后再進(jìn)一步解答.
解答:
25×25+4×4,
=625+16,
=641;
25×4+25×4,
=100+100,
=200;
641≠200;
所以,25×25+4×4≠25×4+25×4.
故答案為:×.
點評:關(guān)鍵是計算出左右兩個算式的結(jié)果,然后再進(jìn)行比較解答.
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