Zearn Math Grade 2, Mission 6: Foundations of Multiplication and Division
In this unit, your child builds the foundations of multiplication and division. They make equal groups, add the rows of an array, split rectangles into rows and columns of same-size squares, and decide whether numbers are odd or even. It builds on addition and subtraction within 1,000 and leads into problem solving with length, money, and data.
By Robert “Bobby” BarnettMath teacher, parent, and founder of Bobby’s Math Club
What is my child learning in Mission 6?
- Showing that an even number can be split into two equal groups or pairs, while an odd number has one left over. Learn more: Odd and even numbers
- Writing a repeated addition equation for an array, like 5 + 5 + 5 = 15 for 3 rows of 5. Learn more: Counting objects in equal rows by adding
- Partitioning a rectangle into equal rows and columns of squares and linking it to the arrays they have built. Learn more: Splitting a rectangle into rows of squares
Sample questions to try together
These are real questions from our practice. Tap the speaker to hear one read aloud, or the light bulb for a hint, and talk about the answer together.
Question 1 of 3
Is 16 an even or odd number?
- Even
- Odd
- Neither
How you can help
- Set out spoons or toys in equal groups, like 4 groups of 3, and ask how many in all. Then rearrange them into an array of 4 rows.
- Ask whether the number of people at dinner is odd or even. Can everyone have a partner, or is one person left over?
- Draw a rectangle and help your child split it into 3 rows of 4 squares. Ask them to say the adding sentence that matches, 4 + 4 + 4 = 12.
Where kids can get stuck
- Adding the rows and the columns, answering 8 for 3 rows of 5 instead of adding 5 + 5 + 5.
- Thinking a big number like 18 must be odd, because it seems too large to share evenly.
- Drawing rows with different numbers of squares, so the grid is not an array of equal rows.
Practice makes perfect
Bobby's Math Club has practice problems that adapt to your child’s level, each with a detailed explanation and an easy-to-follow video, so your child can build confidence in these skills one step at a time.
Words your child will hear
- equal groups
- Groups that all have the same number of things.
- array
- Objects set out in equal rows and columns, like eggs in a carton.
- row
- A line of things that goes across.
- column
- A line of things that goes up and down.
- repeated addition
- Adding the same number again and again, like 5 + 5 + 5.
- even
- A number that splits into pairs with none left over, like 6 or 14.
- odd
- A number that has one left over when you make pairs, like 7 or 15.
Ready to build your child’s confidence with equal groups and arrays?
In Bobby's Math Club, your child practices these skills at just the right level, with a hint when they need one, a clear explanation after every question, and kid-friendly videos. Unlimited practice is free.
Join the club
Written by Robert “Bobby” Barnett
Bobby is an award-winning math teacher, the author of Meet Every Learner’s Needs, and the father of two elementary-school math learners. He uses Bobby’s Math Club with his own kids a few times every week. Learn more or contact Bobby.
Which math standards does Zearn Math Grade 2 Mission 6 cover?
Zearn Math Grade 2 Mission 6 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.
For teachers: Unit names and order vary between editions and districts, so your school’s own materials have the exact sequence. Learn how Bobby's Math Club can help your students grow.