standard_description: Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
problem_activity: Problem 1
Point
$$Q$$
is located at
$$(-3,2)$$
. It is reflected over at least one axis and is now located at
$$(-3,-2)$$
. Describe the reflection that took place.
Problem 2
Riley reflects point
$$L$$
, located at
$$(5,4)$$
, over the
$$y$$
-axis. They determine its new location is at
$$(4,-5)$$
. Did Riley correctly identify the coordinates of the reflected point? Explain your reasoning.


aligns: no