题目内容

计算下列各题。
(1)0.4×580×0.25 (2)4.61×7.3+5.39×7.3 (3)39.6-14.75-9.6
(4)0.24×5÷5×100 (5)1.25×0.5×400 (6)0.6×(5.6-4.6)-0.12
(1)原式=0.4×0.25×580
                =0.1×580
                =58
(2)原式=7.3×(4.61+5.39)
                =7.3×10
                =73
(3)原式=39.6-9.6-14.75
                =30-14.75
                =15.25
(4)原式=0.24×100
                =24
(5)原式=1.25×200
                =250
(6)原式=0.6-0.12
                =0.48
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