问题
填空题
按规律填数.
(1)1.53.55.5____________11.5
(2)1894.5____________0.5625.
答案
(1)5.5+2=7.5;
7.5+2=9.5;
要填的数是7.5,9.5;
(2)4.5÷2=2.25,
2.25÷2=1.125;
要填的数是2.25,1.125;
故答案为:7.5,9.5;2.25,1.125.
按规律填数.
(1)1.53.55.5____________11.5
(2)1894.5____________0.5625.
(1)5.5+2=7.5;
7.5+2=9.5;
要填的数是7.5,9.5;
(2)4.5÷2=2.25,
2.25÷2=1.125;
要填的数是2.25,1.125;
故答案为:7.5,9.5;2.25,1.125.