Question

9*{8+7*[6+5*(4+3*(2+1))]}: ( 1+2+3+...+9)​

Answer 1

Răspuns:

9×{8+7×[6+5×(4+3×(2+1))]}÷(1+2+3+...+9)=

9×{8+7×[6+5×(4+9)]÷[9×(9+1)]÷2=

9×[8+7×(6+5×13)÷(9×10)÷2=

9×[8+7×(6+65)÷90÷2=

9×(8+7×71)÷45=

9×505÷45=

4545÷45=

101