3rd grade · Math · Unit 5 of 18
Multiplication
Equal groups and arrays
What your child practices
Understanding multiplication as equal groups, arrays, repeated addition and skip counting. Easier sets use 2s, 5s and 10s; stretch sets go beyond 5 × 5.
Texas Essential Knowledge and Skills (TEKS) teks student expectation: 3.4(D); 3.4(E); 3.4(F) · equal groups and arrays, and recalling multiplication facts to 10 by 10
How we explain it
Children can open this short lesson before they practice.
- Multiplying means equal groups.
- 3 × 4 means 3 groups of 4.
- An array shows the groups as rows and columns.
Example: 4 × 5 = ? That is 4 groups of 5. 5 + 5 + 5 + 5 = 20. Answer: 20
Multiplication in Texas
In the Texas Essential Knowledge and Skills (TEKS), this is unit 5 of 18 in 3rd grade Math, after Two-Step Stories and before Times Tens.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
Source: Texas Education Agency (TEA)
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
Priya has 3 vases with 3 flowers in each vase. How many flowers in all?
🌷3 groups of 3answer box
9
Hint: 3 groups of 3 is 3 × 3. Count by 3s 3 times: 3, 6, 9.
Question 2
How many 🌼 are in the array?
🌼🌼🌼🌼🌼🌼🌼🌼🌼🌼🌼🌼answer box
12
Hint: There are 3 rows of 4, so it's 3 × 4. Turn it around: 3 × 4 = 4 × 3. Count by 3s 4 times: 3, 6, 9, 12.
Question 3
Which multiplication means the same as this?
2 + 2 + 2 + 2 + 2
- 5 × 2
- 5 + 2
- 6 × 2
- 2 × 2
5 × 2
Hint: There are 5 groups of 2 added together, so it's 5 × 2 = 10.
Question 4
4 × 5 = 20. So what is 5 × 4?
5 × 4 = ?
- 24
- 15
- 9
- 20
20
Hint: You can multiply in any order. 5 rows of 4 is the same number as 4 rows of 5: 20.
Question 5
A frog makes 3 hops. Each hop is 2 long. Where does it land?
- 8
- 4
- 5
- 6
6
Hint: Count by 2s, once for each hop: 2, 4, 6. That's 3 × 2 = 6.
Question 6
What is 3 × 3?
3 × 3 = ?
- 9
- 12
- 6
- 10
9
Hint: Count by 3s 3 times: 3, 6, 9.