This mental maths coloring worksheet includes addition problems to 20 with regrouping.

Students have to find the sum and drag it to the correct place. If they get it right, part of the turtle is colored in, otherwise, they have to try again to find the coorect answer.

Coloring by numbers brings fun and engagement to the learning process.

It is easy to see how well pupils are doing problems about add up to 20. You only need to look at the coloring of the tortoise in each pupil.