15÷0.25=________1.5×25=________59×1.8=________2.5×0.4=________24×38=________2.4+1.6=________512÷56=________57×2125=________14÷25%=________32×2.5=________.
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60 37.5 106.2 1 912 4 121125 56 80
解析分析:14÷25%先把百分数化成分数再计算;32×2.5把32分解乘8×4再运用乘法结合律简算;其它题目根据运算法则直接求解.
解答:解:15÷0.25=60,1.5×25=37.5,59×1.8=106.2,2.5×0.4=1,24×38=912,2.4+1.6=4,512÷56=,57×2125=121125,14÷25%=56,32×2.5=80.故