Worked Example 1
Rows in an Array
An array has 3 rows with 5 stars in each row. How many stars are there?
- 1Each row has 5 stars, and there are 3 rows.
- 2Add 5 three times: 5 + 5 + 5 = 15
Answer: 15 stars
Florida Grade 2 Math · Algebraic Reasoning
MA.2.AR.3.2: Equal Groups and Arrays
What this Grade 2 benchmark means, worked examples, common mistakes, and a free printable worksheet.
Created by a Florida mom · Published by Tropical Learning LLC
What Is Benchmark MA.2.AR.3.2?
Students use repeated addition to find the total in equal groups, and show it with rectangular arrays (rows and columns) and equations. The total is 25 or less.
For example, 3 rows of 5 stars is 5 + 5 + 5 = 15. This builds the foundation for multiplication in Grade 3.
Official benchmarkUse repeated addition to find the total number of objects in a collection of equal groups. Represent the total number of objects using rectangular arrays and equations.
How it is tested: Grade 2 students take FAST Star Math, Florida's math test for Kindergarten through Grade 2.
Worked Examples
Worked Example 2
Equal Groups
There are 4 bags with 4 apples in each bag. How many apples are there?
- 1Each bag is a group of 4, and there are 4 bags.
- 24 + 4 + 4 + 4 = 16
Answer: 16 apples
Common Mistakes to Watch For
Adding the number of rows and the number in each row
Wrong:3 rows of 4: 3 + 4 = 7
Add one row for each row: 4 + 4 + 4 = 12.
Writing the wrong number of addends
Wrong:4 rows of 6: 6 + 6 + 6 = 18
There are 4 rows, so add 6 four times: 6 + 6 + 6 + 6 = 24.
Helpful Math Tip
Look for arrays at home: egg cartons, muffin pans, windows, and tiles. Ask how many rows, how many in each row, and how many in all.
Related Grade 2 Skills
Make Florida Math Practice More Fun
Help your child build math confidence with original interactive questions aligned with Florida's B.E.S.T. Mathematics Standards.
Start Practicing FreeIndependent Educational Platform. FastChomp is published by Tropical Learning LLC and is not affiliated with, sponsored by, or endorsed by the Florida Department of Education. FAST and Star assessment names are referenced for informational purposes only. FastChomp practice questions are original educational materials, not official Florida FAST assessment questions.