Math Lesson 2.4

Math Lesson 2.4

2.4 Add to Find the Total Number of Objects in Arrays

Learning Intentions: I am learning to  write equations using repeated addition to find the total number of objects in arrays. 

Success Criteria: I can write an addition equation to find the total number of objects in equal groups.

Vocabulary

• equal groups groups that have the same number of objects rows go across left to right

  
  

Multiple Choice

Look at the array below

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Find the number of rows and the number of shapes in each row.

Then complete the addition equation to find the total.

Click on the numbers to enter the answers in the boxes.

Hint:

rows

shapes

• 4+3=7

• 4+4=8

Multiple Choice

Look at the array, how many stars do you see in the array.

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Find the number of rows and the number of stars in each row.

Then complete the addition equation to find the total.

Click on the numbers to enter the answers in the boxes.

• 3+3=6

• 4+4=8

Multiple Choice

Look at the array, how many stars do you see in the array.

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****

****

Find the number of rows and the number of stars in each row.

Then complete the addition equation to find the total.

Click on the numbers to enter the answers in the boxes.

• 3+3+3=9

• 4+4+4=12

Open Ended

Exit ticket:

There are 12 stickers on a chart. There are 3 stickers in each row. How many rows of stickers are there? Then write an addition equation to find the total. Explain your reasoning using pictures, numbers or words.