问题
填空题
100-28.9-21.1______50
98.4-7.63______90
4.93+5.07-5______5
26.3+13.7+6______50
5.94+3.06______10
3.48+2.66______6.
答案
(1)100-28.9-21.1
=100-(28.9+21.1)
=100-50;
所以,100-28.9-21.1=50;
(2)98.4-7.63=90.77,90.77>90;
所以,98.4-7.63>90;
(3)4.93+5.07-5
=10-5
=5;
所以,4.93+5.07-5=5;
(4)26.3+13.7+6
=40+6
=46;
46<50;
所以,26.3+13.7+6<50;
(5)5.94+3.06=9,9<10;
所以,5.94+3.06<10;
(6)3.48+2.66=6.14,6.14>6;
所以,3.48+2.66>6.
故答案为:=,>,=,<,<,>.