Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 9 + 21 ÷ 3 = _______
- 66 - 15 ÷ 5 = _______
- (19 + 15) ÷ 2 = _______
- (25 + 7) ÷ (2 - 6) = _______
(a)
9 + 21 ÷ 3
= 9 + 7
= 16
(b)
66 - 15 ÷ 5
= 66 - 3
= 63
(c)
(19 + 15) ÷ 2
= 34 ÷ 2
= 17
(d)
(25 + 7) ÷ (2 - 6)
= 32 ÷ -4
= -8
Answer(s): 16, 63, 17, -8