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2nd Grade Operations and Algebraic Thinking- Work with equal groups of objects to gain foundations for multiplication, Standard 4, Pre Test 1
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
mc001-1.jpg
Which equation below describes the colored portion of the array?
a.
5 + 5 + 5
c.
3 + 3 + 3
b.
4 + 1 + 4 + 1
d.
4 + 4 + 4
 

 2. 
mc002-1.jpg
Which equation below describes the colored portion of the array?
a.
5 + 5 + 3
c.
3 + 3 + 3 + 3 + 3
b.
5 + 5 + 5
d.
4 + 4 + 4
 

 3. 
mc003-1.jpg
Which equation below describes the colored portion of the array?
a.
2 + 2 + 2 + 2 + 2
c.
3 + 3 + 3 + 3 + 3
b.
5 + 5 + 5 + 5 + 5
d.
1 + 1
 

 4. 
mc004-1.jpg
Which equation below describes the colored portion of the array?
a.
2 + 2 + 2 + 2 + 2
c.
3 + 3 + 3 + 3 + 3
b.
5 + 5 + 5 + 5 + 5
d.
1 + 1
 

 5. 
mc005-1.jpg
Which equation below describes the colored portion of the array?
a.
2 + 2 + 2 + 2 + 2
c.
3 + 3 + 3 + 3 + 3
b.
4 + 4 + 4 + 4
d.
1 + 1 + 1 + 1
 

 6. 

Which array below describes this equation:  3 + 3 + 3?
a.
mc006-1.jpg
c.
mc006-3.jpg
b.
mc006-2.jpg
d.
mc006-4.jpg
 

 7. 

Which array below describes this equation:  2 + 2 + 2?
a.
mc007-1.jpg
c.
mc007-3.jpg
b.
mc007-2.jpg
d.
mc007-4.jpg
 

Completion
Complete each statement.
 

 8. 
Write an equation that shows the sum of the colored squares in the array below.  Put a space between each number and symbol.  Don’t forget the = sign and the answer.
co008-1.jpg
 

 

 9. 
Write an equation that shows the sum of the colored squares in the array below.  Put a space between each number and symbol.  Don’t forget the = sign and the answer.
co009-1.jpg
 

 

 10. 
Write an equation that shows the sum of the colored squares in the array below.  Put a space between each number and symbol.  Don’t forget the = sign and the answer.
co010-1.jpg
 

 



 
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