Oblicz: 1. -0,7-0,9 2.-0,5+1/2 3.-2-0,7 4.5,7-(-23,5) 5.-24 7/11+14 7/11 6.(-4)×5/12 7.-(-1/2) do potegi 2 Prosze o szybko odpowiedz blagam❤

1. -0.7 - 0.9=  -1.6 2. -0.5 + 1/2 = -1/2 + 1/2 = 0 3 -2 - 0.7 = -2.7 4 5.7 -(23.5) = 5.7 + 23.5 = 29.2 5 -24 7/11+14 7/11 = -10 6 (-4)×5/12 = -20/12= -1 8/12 = -1 2/3 7 -(-1/2) do potegi 2 = 1/2 * 1/2= 1/4

1. -0,7 - 0,9 = -1,6 2. -0,5 + 1/2 = -0,5 + 0,5 = 0 3. -2 - 0,7 = -2,7 4. 5,7 - (-23,5) = 5,7 + 23,5 = 29,2 5. -24 7/11 + 14 7/11 = -10 14/11 = -9 3/11 6. (-4) × 5/12 = -4/1 × 5/12 = -5/3 = -1 2/3 7.  -(-1/2)² = 1/2² = 1/2 × 1/2 = 1/4