These color-by-code pages offer a focus on reading tallies, number words, odd or even numbers to 40, adding or subtracting 10, along with addition and subtraction fact practices to fine tune student learning. The target grades are first and second and anyone needing review on the skills involved. Answer keys are included.Teachers love the print-and-go prep and using these for indoor recess, testing days--after their own testing or when others are being tested and silence is a considerate must, b