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(-3½) x 5 - (-3)³=
-17,5-(-27) =
9,5
2)
2¼ x (-1¹/₉) + 4²=
-2,5+16 =
13,5
3)
(-3½) x 4 - 5=
-14-5 =
-19
4)
(-6⅔) x (-0,4)- 7=
2⅔-7 =
-4⅓
2) 2¼ × (-1¹/₉) + 4²=9/4×(-10/9)+16=-10/4+16=-2½+16=13½
3)(-3½) × 4 - 5=-7/2×4-5=-14-5=-19
4)(-6⅔) × (-0,4)- 7=-20/3×(-4/10)-7=8/3-7=2⅔-7=-4⅓