脱式计算.(能简便的要简便)(1)2005-395+605(2)16×125×21(3)14÷(1-13)(4)45-8×332(5)(56-45)÷415(6)4.8×96+4.8÷14.-数学
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答案
(1)2005-395+605, =(2000+5)-(400-5)+(600+5), =(2000-400+600)+5+5+5, =2200+15, =2215; (2)16×125×21, =2×8×125×21, =2×21×(8×125), =42×1000, =42000; (3)
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