24-9.8怎样简便计算

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24-9.8怎样简便计算

24-9.8怎样简便计算
24-9.8怎样简便计算

24-9.8怎样简便计算
=24-(10-0.2)
=24-10+0.2
=14+0.2
=14.2

24-9.8=24-(10-.02)=24-10+0.2=14+0.2=14.2

24-10+0.2
=14+0.2
=14.2

24-(10-0.2)=24-10+0.2=14.2

24-10+0.2=14.2

24-(10-0.2)=24-10+0.2=14+0.2=14.2

24-9.8
=24-(10-0.2)
=24-10+0.2
=14+0.2
=14.2