Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- - 2 - 7 = _______
- - 4 + 9 = _______
- - 8 + 7 = _______
- - 7 - 5 = _______
(a)
- 2 - 7 = - 9
(b)
Rearrange the sequence so that the minus sign is in the center of the equation.
- 4 + 9
= 9 - 4
= 5
(c)
Rearrange the sequence so that the minus sign is in the center of the equation.
- 8 + 7
= 7 - 8
= - 1
(d)
- 7 - 5 = - 12
Answer(s): - 9, 5, - 1, - 12