0.7×0.7÷0.7×0.7=1．
錯誤
錯誤
．
分析：此題先調(diào)整一下運算順序，變?yōu)?.7÷0.7×0.7×0.7，從左往右以此計算．
解答：解：0.7×0.7÷0.7×0.7，
=0.7÷0.7×0.7×0.7，
=1×0.7×0.7，
=0.49；
故答案為：錯誤．
點評：根據(jù)數(shù)字特點，調(diào)整運算順序，使計算簡便．
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