Try this solution with short explanation; note, the suggested way is not the shortest one; the answers are marked with red colour.
Task no. 2: another solution is 45* (4/5) / (6/4) = 24 min.
False Happy Thanksgiving :)
In the <span>addition process</span> this usually involves:
<span><span>rounding numbers up to the nearest multiple of 10 or 100 </span>subtracting the extras that were added at the end.</span>
In the subtraction process this usually involves subtracting too much and completing the calculation by putting some back.
x=2y is linear and can also be writtend as y=x/2
