11. Сложите равенства столбиком.
a)-6 + 1,5 = -4 n 3 = 3,3 ÷ 1,1
c) 9 +0,3 = 30 и 0,8 + 2 = 0,4
b) 8 + (-2) = - 16 и 1,5 × 2 = 3
d) 1,69 0,13 = 13 n-54 + 2 = -27
срочно
с решением ​
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