19.6÷0.5-9.6x2怎样简便计算

19.6÷0.5-9.6x2怎样简便计算
2025-06-26 20:49:11
推荐回答(3个)
回答1:

19.6÷0.5-9.6x2
=19.6×2-9.6x2
=(19.6-9.6)×2
=10×2
=20

回答2:

=19.6x2-9.6x2
=(19.6-9.6)x2
=10x2
=20

回答3:

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