In decimal number system, the positions successive to the left of the decimal point represent units, tens, hundreds, thousands and so on.

Every position shows a particular power of the base (10).

They will probably start learning about addition by making two groups (for example: 5 bananas and 2 apples) and putting them together.

They then develop towards working out how to write these numbers and arrange them with the symbols and = to make a number sentence that makes sense.

Let’s take an example to understand the concept of Open number sentence.

A B = 5 the expression can be true or false that depend on the value of A and B if the value of A=2 and B=3 then the given expression is true and comes under True number sentence but if the value of A=4 and B=2 then the given expression is false number sentence.

Another one is let’s take out the addition sign between the both numbers, then again it is not.

Open number sentence is an expression that contain variables and result of which either become true or false depending on the value of the variable.

Remove any of those required elements, and again, you no longer have a number sentence.

Another type of number sentence we can make is an inequality.

## Comments How To Write A Number Sentence To Solve A Problem

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This lessons starts with a concrete representation of a change unknown problem and then pushes students to think abstractly and develop number sentences to solve change unknown word problems Plan your 60-minute lesson in Math or Differentiation with helpful tips from Caitlin Vaughan…

## Number Sentence Worksheet - Online Math Learning

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations. You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics.…

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Number Sentence Word Problems Solve the following word problems 1 If Kevin has nine cookies and he gives three away, how many cookies does Kevin have left? _____ Write a number sentence that represents Kevin’s cookies. 2 If Austin’s dog has seven bones and he eats two of them, how many bones does Austin’s dog have left?…

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Solve Problems with Number Sentences Scaffolds only. Use these scaffolds to help students solve problems with number sentences. Represent a word problem as a number sentence or write a problem to represent a number sentence. PRINT AND LAMINATE. Use whiteboard markers. Give students a word problem OR number sentence to write on their scaffold.…

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Write a Number Sentence Gr. 1 This printable presents students with the set of steps necessary for writing a number sentence, and includes an example for them to follow. They use critical-thinking skills to plan the operations they will perform, and how those operations will work together step-wise to form a number sentence.…

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