Subtraction Within 10 Games
Grade 1 Subtraction as Unknown Addend Problems
1.OA.B.4
Missing Numbers in Addition and Subtraction Equations Grade 1
1.OA.D.8
Subtracting Multiples of Ten
1.NBT.C.6
Two Digit Addition Within 100
1.NBT.C.4
Equal Sign and True False Equations Grade 1
1.OA.D.7