Solution 1.1:5b

From Förberedande kurs i matematik 1

We write the numbers in decimal form and then compare them. By using 110=0115=02 and 13=0333, we have

−21=−05−51=−02−310=−03−31=−0333

If we just remember that these are negative numbers, we can see directly that

−21−31−310−51