## Number Sentence

A number sentence is a mathematical sentence, made up of numbers and signs.

The expressions given in examples indicate equality or inequality.

**Types of Number Sentences**

A number sentence can use any of the mathematical operations from addition, subtraction, multiplication to division. Symbols used in any number sentence vary depending upon what they indicate.

Addition Sentence | |

Subtraction Sentence | |

Multiplication Sentence | |

Division Sentence | |

Less than Sentence | |

Greater than Sentence | |

Algebraic Sentence | |

Fraction Sentence |

Number sentences can be true or they may not be true.

**For example:**

10 + 5 = 15. Here we are using the = sign which indicates a balance of both sides.

However, there could also be number sentences which say:

12 + 6 = 9 is not true, but 12 + 6 = 18 is true.

Therefore, a number sentence does not necessarily have to be true. However, every number sentence gives us information, and based on the information provided; it is possible to change the statement from false to true.

So, a number sentence contains numbers, mathematical operations, equal to or inequality sign and a number after the equality or inequality sign. If we remove any of these components, it will no longer be a number sentence.

**For example: **

10 + 8 > 15

However, if we write 10 + 8 it is not enough to understand what is the question to be solved.

If we write 10 + 8 15. It does not make any sense

If we write + >, this does not make any sense too.

Number sentence problems can come in the form of word problems, asking the students to write the equation.

**For example: ** Mary has 10 strawberries. If Dan gives her 15 strawberries, how many strawberries does Mary have in total?

**Other examples of a problem for number sentence could be as follows:**

20 + ____ = 25

___ – 20 = 80

Fun fact: – Number sentences are simply the numerical expression of a word problem. |