27- [13 + {4-(8 + 4 – )}]
Answers:
27- [13 + {4-(8 + 4 – )}]
= 27 – [13 + {4 -(8 + 4 – 4)}]
= 27- [13 + {4 – 8}]
= 27 – [13 + (-4)]
= 21 – [9]
= 27- 9
= 18
27- [13 + {4-(8 + 4 – )}]
27- [13 + {4-(8 + 4 – )}]
= 27 – [13 + {4 -(8 + 4 – 4)}]
= 27- [13 + {4 – 8}]
= 27 – [13 + (-4)]
= 21 – [9]
= 27- 9
= 18