Here we have another great set of maths worksheets on subtraction. There are two key concepts for your child you be familiar with on these worksheets. Firstly, the subtraction sign is used. Secondly, the idea of a function machine, where a number is put in, an operation is carried out and a number is sent out. Believe it or not, this is a great early introduction to algebra. Our robot is now a 'take 3' machine. What numbers will be coming out of him/her? This is just one of a fantastic range of fun  maths activities which will quickly help your child become confident with number and enjoy their maths. Why not sign up now for completely free use of well over 1000 maths resources? Go to our Resources on using the Minus Sign