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In mathematics education, a number sentence is an equation or inequality expressed using numbers and mathematical symbols. The term is used in primary level mathematics teaching in the US,[1] Canada, UK,[2] Australia, New Zealand[3] and South Africa.[4]
EXAMPLE:
A valid number sentence that is true: 3+10=13. A valid number sentence that is false: 1 + 1 = 3. A valid number sentence using a 'less than' symbol: 3 + 6 < 10. A valid number sentence using a 'more than' symbol: 3 + 9 > 11. An example from a lesson plan:[6] Some students will use a direct computational approach. They will carry out the addition 26 + 39 = 65, put 65 = 26 + ◻ \Box , and then find that ◻ \Box = 39.
Answers & Comments
EXAMPLE:
A valid number sentence that is true: 3+10=13.
A valid number sentence that is false: 1 + 1 = 3.
A valid number sentence using a 'less than' symbol: 3 + 6 < 10.
A valid number sentence using a 'more than' symbol: 3 + 9 > 11.
An example from a lesson plan:[6]
Some students will use a direct computational approach. They will carry out the addition 26 + 39 = 65, put 65 = 26 +
◻
\Box , and then find that
◻
\Box = 39.
Answer:
Appropriate number sentence is a valid number sentence that is true.