Difficult

Operations with Signed Numbers: Very Difficult Problems with Solutions

Problem 1
Evaluate the expression
m - (m - n) : (-2) ⋅ (-5) when m = -4, n = -6
Problem 2
Evaluate the expression
[x : (y - 3)] ⋅ (-4) - [xy + (-3)] : -1 =
when x = -5 and y = -2
Problem 3
Calculate
[tex][2.4 - (0.3 - 0.21) \cdot 2 + 0.44 : (-2)]:\frac{4}{5} = [/tex]
Problem 4
Calculate
[tex]3:\left(-\frac{3}{5}\right)-\left(-\frac{4}{5}:2\right)+5\cdot \left[-0.4 - \frac{4}{10}:(-2)\right] = [/tex]
Difficult
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