Question

递等式计算（能简算的要简算）7.6/（1.9*25）（2.5-1/1.25）*0.833.98-5.48-7.89-4.

Answer 1

7.6/（1.9*25）

=7.6/1.9*25

=4*25

=100

（2.5-1/1.25）*0.8

=(2.5-0.8)*0.8

=1.36

33.98-5.48-7.89-4.52

=26.09-10

=16.09

500+9.9*52=1014.8

(8.1-5.4)/3.6+85.7

=2.7+85.7

=88.4

5.4/(3.94+0.86)*0

=0