Question 4252
 On way:
 Step 1) Get rid of %, note % means 1/100,
        so 0.5% of  5600 = 0.5 times 56 (cancel two zeros of 5600)
 Step 2) Note 0.5 = 5/10 = 1/2 , ie 0.5 means one half.
 Step 3) Key in 56 and then it divide it by 2 , you will get the answer.

 That's the whole simple story. (No decimal & no multiplication operators) 

 Kenny