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B] 32+[25-9]÷4=32+[16]÷4=32+4=36
C] 45÷15÷3×5=3÷3×5=1×5=5
D] 0,4×0,5+0,3²=0,4*0,5+0,09=0,2+0,09=0,29
E] 3,4+1,9-0,5+0,09=5,3-0,5+0,09=4,8+0,09=4,89
F] 0,48÷0,6÷[1-0,6]=0,48÷0,6÷[0,4]=0,8÷[0,4]=2