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Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers. Spin a number. Write the number in the box. Then complete the number sentence. Because the number sentences are randomly generated, this same worksheet can be given to students on multiple days and the problems will always be different!

Add up to four two-digit numbers using strategies based on place value and properties of operations. Instructions: Spin four numbers and write them in the boxes. Then add the four numbers. Because the numbers in the problems are random, this same worksheet can be given to students on multiple days and the problems will always be different!