Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- - 4 - 9 = _______
- - 1 + 3 = _______
- - 18 + 15 = _______
- - 9 - 2 = _______
(a)
- 4 - 9 = - 13
(b)
Rearrange the sequence so that the minus sign is in the center of the equation.
- 1 + 3
= 3 - 1
= 2
(c)
Rearrange the sequence so that the minus sign is in the center of the equation.
- 18 + 15
= 15 - 18
= - 3
(d)
- 9 - 2 = - 11
Answer(s): - 13, 2, - 3, - 11