Primary Number Problems

Problems start simple and increase in complexity. All addition and subtraction within 20. Building an understanding of Start unknown ( __ + 3 = 5) and Change unknown ( 6 + __ = 11) problems as well across both addition and subtraction. These problems will help learners to become familliar with the language of problem solving as well as basic facts to 20. First Grade, Second Grade Maths Worksheets. 70 Problems to print straight away. Answers included on the last pages.

Every-day use to reinforce basic Addition and Subtraction Facts. With these 146 cards, comes a table that shows how you can group the cards when teaching a particular strategy for addition. Whether it is counting on from the largest number, using number bonds to ten, doubles facts, or decomposition strategies - e.g. 7 + 5 = 7 + 3 (to make 10) and 2 more make 12.