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:=,>,=,<,<,>.

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