10 is a number we use everyday in maths! We know that 10 ones make a ten and 10 tens make 100! We can use our friends of ten when adding 1 digit numbers together (3 + 7 = 10). We can also use them to build to the next ten; 27 + 6: I can add 3 to 27 to make 30 and then add 3 more to make 33. Below are two examples of why the number ten is so important. Follow this link http://www.schoolatoz.nsw.edu.au/homework-and-study/mathematics/help-sheets to get some more helpful hints!