
3.72×9.9 =3.72×10-3.72×0.1 =37.2-0.372 =36.828
。
最后结果等于36.828。
=3.72×(1-0.1)=3.72-0.372=3.348
=3.72×(10—0.1)=37.2—0.372=36.828

3.72×9.9 =3.72×10-3.72×0.1 =37.2-0.372 =36.828
。
最后结果等于36.828。
=3.72×(1-0.1)=3.72-0.372=3.348
=3.72×(10—0.1)=37.2—0.372=36.828