Oblicz: szybko błagam :*
5 2/5 - 8(-1,5+0,3) ÷ 2 = 5,4 - 8·1,2 ÷ 2 = 5,4 + 9,6 ÷ 2 = 5,4 + 4,8 = 10,2
27/5 - 2³ * (-3/2 + 3/10) / 2 =
= 27/5 - 8/2 * (-15/10 + 3/10) =
= 27/5 - 4 * (-12/10) =
= 27/5 - (-48/10) =
= 27/5 + 48/10 =
= 54/10 + 48/10 =
= 102/10 = 10,2
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5 2/5 - 8(-1,5+0,3) ÷ 2 = 5,4 - 8·1,2 ÷ 2 = 5,4 + 9,6 ÷ 2 = 5,4 + 4,8 = 10,2
27/5 - 2³ * (-3/2 + 3/10) / 2 =
= 27/5 - 8/2 * (-15/10 + 3/10) =
= 27/5 - 4 * (-12/10) =
= 27/5 - (-48/10) =
= 27/5 + 48/10 =
= 54/10 + 48/10 =
= 102/10 = 10,2