Scootle maintenance is scheduled to occur on Thursday, 12 December 2019. There could be intermittent downtime for one hour from 2.30 pm to 3.30 pm (AEDT). We apologise for any inconvenience caused.
Use counters to model the addition of integers, for example (-2)+(+5)=(+3). See the calculations represented in an alternate form on a number line. This learning object is one in a series of four objects.