This model shows 6 + 3 = 9. You can also use part-whole models to help with addition problems involving bigger numbers. We can partition the smaller number and add the tens and ones separately.

This model shows 6 + 3 = 9. You can also use part-whole models to help with addition problems involving bigger numbers. We can partition the smaller number and add the tens and ones separately.

From poor workmanship and flow to damp, ventilation and roof flashing problems, avoid these home addition issues in your ...