问题 填空题

根据所给的算式,在下面的括号里填上合适的数,你能想出几种填法?

(1)35×56=1960

19.6=______×______

=______×______

=______×______

1.96=______×______

=______×______

=______×______

(2)86×31=2666

2.666=______×______

=______×______

=______×______

26.66=______×______

=______×______

=______×______.

答案

(1)35×56=1960,

19.6=0.35×56,

=35×0.56,

=3.5×5.6;

1.96=0.035×56,

=35×0.056,

=3.5×0.56;

(2)86×31=2666,

2.666=0.086×31,

=86×0.031,

=8.6×0.31;

26.66=0.86×31,

=86×0.31,

=8.6×3.1;.

故答案为:(1)0.35,56,35,0.56,3.5,5.6;0.035,56,35,0.056,3.5,0.56;

(2)0.086,31,86,0.031,8.6,0.31;0.86,31,86,0.31,8.6,3.1.

解答题
单项选择题