Common Core: 2nd Grade Math : Operations & Algebraic Thinking
Study concepts, example questions & explanations for Common Core: 2nd Grade Math
All Common Core: 2nd Grade Math Resources
Example Questions
Example Question #451 : Operations & Algebraic Thinking
Is there an even or an odd number of dots below?
Even
Odd
Both
Neither
Even
When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.
In this case, our dots are in pairs of two, so we have an even number of dots.
Example Question #452 : Operations & Algebraic Thinking
Is there an even or an odd number of dots below?
Odd
Both
Even
Neither
Even
When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.
In this case, our dots are in a pair of two, so we have an even number of dots.
Example Question #453 : Operations & Algebraic Thinking
Is there an even or an odd number of dots below?
Both
Neither
Odd
Even
Odd
When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.
In this case, we have one dot not in a pair, so we have an odd number of dots.
Example Question #454 : Operations & Algebraic Thinking
Is there an even or an odd number of dots below?
Odd
Neither
Both
Even
Even
When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.
In this case, our dots are in pairs of two, so we have an even number of dots.
Example Question #455 : Operations & Algebraic Thinking
Is there an even or an odd number of dots below?
Even
Neither
Both
Odd
Odd
When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.
In this case, we have one dot so it's can't be in a pair, so we have an odd number of dots.
Example Question #456 : Operations & Algebraic Thinking
Is there an even or an odd number of dots below?
Odd
Even
Neither
Both
Even
When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items.
In this case, our dots are in pairs of two, so we have an even number of dots.
Example Question #1 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4
What is the equation that shows the sum of the squares represented by this rectangular array?
. We have 
rows with 
squares in each row. Our math equation for this set could be written as 
Example Question #1 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4
When we count the number of squares in this picture we get 
Example Question #2 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4
When we count the number of squares in this picture we get 
Example Question #1 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4
When we count the number of squares in this picture we get 
All Common Core: 2nd Grade Math Resources
