59.8×60.2简便运算,
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59.8×60.2简便运算,59.8×60.2简便运算,59.8×60.2简便运算,求采纳望好评(60-0.2)(60+0.2)=60-0.2=3600-0.04=3599.96(60-0.2)*(6
59.8×60.2简便运算,
59.8×60.2简便运算,
59.8×60.2简便运算,
求采纳望好评
(60-0.2)(60+0.2)
=60-0.2
=3600-0.04
=3599.96
(60-0.2)*(60+0.2)=3600-0.04=3599.96
(60-0.2)×(60+0.2)=60×60-0.2×0.2=3599.96
59.8×60.2=(60-0.2)(60+0.2)=60^2-0.2^2=3600-0.04=3599.96
(60-0.2)乘()60+0.2)=60-0.2乘0.2=59.96