Addition and Subtraction of Decimals

In this topic, we learn to add decimals through various methods. Those include adding using models, through Partial-Sums Method, and through Column-Addition Method.

In this topic, we learn to estimate differences between decimals by rounding.

In this topic, we learn to estimate the sums using rounding.

In this topic, we learn to subtract decimals through various methods. Those include subtracting using models, through Trade-First Method, through Left-to-Right Subtraction Method and through Counting-Up Method.