Sign Rules for Multiplication
Multiply and divide with positive and negative integers and rational numbers, understanding the rules for the sign of the product or quotient
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“If your child knows that a negative times a negative makes a positive, can they use that rule to work out calculations like '−3 × −4 = 12' — and explain why it makes sense?”
Full guide and materials
- Activity. Multiply and divide with positive and negative integers and rational numbers, understanding the rules for the sign of the product or quotient
What to notice. Apply the sign rules when multiplying two integers (positive × negative, negative × negative) • Apply the sign rules when dividing two integers • Solve multi-step real-world problems involving all four operations with positive and negative rational numbers
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If your child knows that a negative times a negative makes a positive, can they use that rule to work out calculations like '−3 × −4 = 12' — and explain why it makes sense?
Multiply and divide with positive and negative integers and rational numbers, understanding the rules for the sign of the product or quotient
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Check understanding
- Apply the sign rules when multiplying two integers (positive × negative, negative × negative)
- Apply the sign rules when dividing two integers
- Solve multi-step real-world problems involving all four operations with positive and negative rational numbers
“If your child knows that a negative times a negative makes a positive, can they use that rule to work out calculations like '−3 × −4 = 12' — and explain why it makes sense?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Multiplication & Division
- Age range
- Ages 11–13
Standards