The video below offers some tips for how to efficiently add three one-digit numbers using what we know. The children are always encouraged to look for patterns and make connections with their prior learning. When adding three one-digit numbers, they can use their number bonds, partition a number in order to make a bond to 10, spot doubles, or simply just count on. No matter what order the three numbers are added, they should arrive at the same answer (provided they have counted correctly of course). I would always recommend using objects such as pasta or cheerios for example, or drawing out a sum to make it visual, to support with any calculation.
The dice game is for all abilities and can be played to challenge a sibling or grown up, but offers an opportunity for a little more practise.