0.4乘括号3.2-0点八括号除0点一五

Question

0.4乘括号3.2-0点八括号除0点一五

Answer 1

0.4×（3.2-0.8）÷0.15
＝0.4×2.4÷0.15
＝0.96÷0.15
＝6.4
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Answer 2

图

Answer 3

0.4X(3.2-0.8)÷0.15
=0.4X2.4÷0.3÷0.5
=0.4X8÷0.5
=3.2X2
=6.4