Simple operation of 19.96 / 49.9 * 0 + 49.9 / 4.99-1 If it's OK, a reward will be offered
19.96/49.9*0+49.9/4.99-1=0+10*4.99/4.99-1=10-1=9
Simple calculation of 4.85 × 99 + 4.85
0.99/4/0.11 0.75/0.125-2.7 the calculation of recurrence equation is simple and convenient
0.99/4/0.11
=0.9/0.11/4
=9/4
=2.25
0.75/0.125-2.7
=0.75×8/(0.125×8)-2.7
=6/1-2.7
=6-2.7
=3.3
200 (99-9) / 100 =? Simple method
200(99-9)/100=2x90=180