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=______×______
=______×______
=______×______.
网友回答
解:(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