1. Usage

2. Examples

3. See also

4. References

In mathematics education, a number sentence is typically 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]

Usage

The term is used as means of asking students to write down equations using simple mathematical symbols (numerals, the four main basic mathematical operators, equality symbol).^[5] Sometimes boxes or shapes are used to indicate unknown values. As such, number sentences are used to introduce students to notions of structure and elementary algebra prior to a more formal treatment of these concepts.

A number sentence without unknowns is equivalent to a logical proposition expressed using the notation of arithmetic.

Examples

• 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 + , and then find that = 39.

See also

• Expression (mathematics)
• Equation
• Inequality (mathematics)
• Open sentence
• Sentence (mathematical logic)

References

• Alameda County Study
• Alameda Creek Regional Trail
• Alameda Creek Trail
• Alameda de la sagra
• Alameda (disambiguation)
• Alameda, Florida
• Alameda Gardens
• Alameda Gibraltar Botanic Gardens
• Alameda Health System
• Alameda Hospital
• Alameda, Kern County, California
• Alameda, Malaga
• Alameda Manzanita
• Alameda (Miami)
• Alameda, Miami
• Alameda, Miami, Florida
• Alameda Mole
• Alameda, Málaga
• Alameda nas
• Alameda Naval Base
• Alameda-Oakland Ferry
• Alameda oakland ferry
• Alameda / Oakland Ferry
• Alameda Park Zoo
• Alameda Power and Telecom