SME
Grade 2 Math · Operations & Algebraic Thinking
Work with equal groups and arrays
Use this for “How many dots are in 3 rows of 4? Write an addition sentence.”
Picture
3 rows of 4: 4 + 4 + 4 = 12
This is an example. Type the numbers from your problem to start.
Rows
example
In each row
example
Total
answer
Number sentences
3 rows of 4 = 12
Good to know
•
Each row has the same number of dots. So does each column.
•
Add the same number once for each row: 3 rows of 4 is 4 + 4 + 4.
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Up to 10 rows and 5 columns.
Step-by-step
WE KNOW
Rows: 3
In each row: 4
FIND
total
Step 1 · Find total
3 rows of 4 = ?
Add the number in one row, once for each row.
By rows: 4 + 4 + 4 = 12
By columns: 3 + 3 + 3 + 3 = 12
Total: 12
Check
Put the numbers back in. Both sides should match.
4 + 4 + 4 = 12 ✓
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.