SME
Grade 3 Math · Operations & Algebraic Thinking
Multiply and divide within 100
Use this for “4 bags with 6 apples in each. How many apples?” and the division facts that go with it.
Diagram
4 groups of 6
24 in all
This is an example. Type your own values to start a new problem.
Groups
×
In each group
=
Total
Formulas
4 × 6 = 24
Groups × in each group = total
Assumptions
•
Every group has the same number.
•
Multiply to find the total. Divide to find the groups or how many in each.
•
A division fact hides a multiplication fact: 24 ÷ 6 = 4 because 4 × 6 = 24.
Step-by-step
WE KNOW
Groups: 4
In each group: 6
FIND
total
Step 1 · Find total
4 × 6 = ?
Groups × in each group = total
Multiply the groups by the number in each group.
Double 6: 6 + 6 = 12
Double again: 12 + 12 = 24
Total = 24
Check
Put the numbers back in. Both sides should match.
4 × 6 = 24 ✓
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.
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More problem types
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Use number lines to divide
Use this for equal jumps on a number line: “How many jumps of 5 to get to 30?”
Division: how many in each group?
Use this to share equally: “24 stickers shared by 4 friends. How many each?”
Division: how many equal groups?
Use this for “24 stickers, 6 on each page. How many pages?”
Solve multiplication and division equations
Use this for a number sentence with a box: 8 × ? = 48.
Divide by breaking apart
Use this for “72 chairs in 4 equal rows: how many in each row?” past the facts.