During our math time this week, we spent time studying our 120 number grid. We noticed patterns in the **ones** place and** tens** place going across the grid and down the grid. We also used our number grid to find 10 more and 10 less than a number.

While our number grid can be very helpful, it’s not our only tool for adding ten more and ten less. We can also use our ten sticks find the answer when adding and subtracting tens or adding and subtracting just the tens place or ones place.

We will continue using our strategies next week to add and subtract two digit numbers!

We learned how to use the partners of 100 to solve equations that totaled 100. The partners of 100 are very similar to the partners of 10; however, we are working with tens instead of ones. This strategy came in handy for solving some of our two-digit equations as well.

We also used our understanding of the relationship between addition and subtraction to solve equations. This strategy helped us to quickly find the missing partner in an addition equation once we solved the subtraction equation.