Description Sagosem Age 7 Book 1 (2019) Week 1. Single-digit addition Week 2. Addition with □ Week 3. Single-digit subtraction Week 4. Subtraction with □ Week 5. Addition and subtraction Week 6. Relationship between addition and subtraction Week 7. Calculating with three numbers (1) Week 8. Calculating with three numbers (2) Sagosem Age 7 Book 2 (2019) Week 1. Splitting 10 Week 2. Making 10 Week 3. Making 10 with two numbers Week 4. Making 10 with three numbers Week 5. Adding to make 10 Week 6. Subtracting from 10 Week 7. Adding and subtracting Week 8. Calculating with three numbers Sagosem Age 7 Book 3 (2019) Week 1. Numbers up to 50 Week 2. Reading numbers Week 3. Order of numbers Week 4. 1 and 10, bigger and smaller numbers Week 5. Comparing number size Week 6. Inequality signs Week 7. Number charts Week 8. Patterns and conditions Sagosem Age 7 Book 4 (2019) Week 1. Number charts and addition Week 2. Adding 1 and 2, 10 and 20 Week 3. Sum of two numbers Week 4. Sum of three numbers Week 5. Number charts and subtraction Week 6. Subtracting 1 and 2, 10 and 20 Week 7. Adding and subtracting Week 8. Sum and difference of three numbers