Exercise 1.5
1. 7 - 8 = (-2) + 3x (-4).
3. - 11 - 1-6 - {3 – 5(8 = 4-1)}].
5. 14 = (3 of 2 - 3 + 4) - 9(5-3).
2. 9 - {7 – 24 + (8 + 6 x 2 - 16)}.
4. (-3) × (-12) = (-4) + 3 x 6.
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