Year 1: Subtracting 10 and the ones from a number.
Today, we used counters to subtract 10 from a number and the ones from a number. Then, we moved on from that and partitioned the number to subtract 10 and the ones.
Today, we used counters to subtract 10 from a number and the ones from a number. Then, we moved on from that and partitioned the number to subtract 10 and the ones.