Working on both of these skills makes a ton of sense. You can they interlock throughout just about every topic you will ever find. We start with the very basic facts and expand into word problems and situation based math. We also allow your students to get very creative with making their own sums and differences to create an end integer.
You will find worksheets that start with simple picture addition and subtraction. We then progress to basic math facts. From there we ask students to get creative and make their own advanced math facts. We offer a series of sheets that focus on the use of operators and we end off with solid real life word problem that feature sums and differences.