Question 6 of 22intermediate🔧 ApplyShort Answer6 marks
Remove the brackets and write the expression having the same value. (a) 14 + (12 + 10) (b) 14 - (12 + 10) (c) 14 + (12 - 10) (d) 14 - (12 - 10) (e) -14 + 12 - 10 (f) 14 - (-12 - 10)
(a)
Answer
14 + 12 + 10 = 36
(b)
Answer
14 - 12 - 10 = -8
(c)
Answer
14 + 12 - 10 = 16
(d)
Answer
14 - 12 + 10 = 12
(e)
Answer
-12
(f)
Answer
14 + 12 + 10 = 36
Explanation
(a) Brackets with + sign: signs unchanged (b) Brackets with - sign: signs change from + to - (c) Brackets with + sign: signs unchanged (d) Brackets with - sign: signs change from - to + and + to - (e) No brackets to remove. Terms: -14, 12, -10. Sum = -12 (f) Brackets with - sign: both negative signs become positive