6. (2 бали) Спростіть вираз:
1)-1.5a-(-6b).
2) - 4m -15n + 3m + 18n
-
7. (2 бали) Обчисліть:
-6:- +4:(-0,01)+12.
6
1)
2) (-1,14-0,96): (-4.2)+1,8-(-0,3).
1/2 3
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