![Lesson 1<br />WHAT IS ADDITION?<br />Objectives: <br />After this lesson, the students are expected to:<br />define what addition is;<br />identify the different properties of addition;<br />perform the operation (addition) correctly.<br /> 326 + 258 = 584 SumAddends How well do you remember your basic addition facts? In addition sentence, 326 + 258 = 584, which are the addends and which is the sum?<br />386766570931 <br />Addition is a mathematical method on putting things together. Adding whole numbers together is a method that requires placing the numbers in column to get the answer. Addition is represented by the plus sign (+). The addends and the sum are the two parts of addition. The sum is the total and the addends are the numbers needed to add.<br />Examples:<br />27 +31=58the addends are 27 and 31 and the sum is 58.<br />11+21=32the sum is 32 and the addends are 11 and 21.<br />-895351-476250WORKSHEET NO. 1<br />NAME: ___________________________________DATE: _____________ <br />816491221295YEAR & SECTION: ________________________RATING: ___________<br />,[object Object]](https://image.slidesharecdn.com/009-lesson1-100627023717-phpapp02/85/009-lesson-1-1-320.jpg)
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009 lesson 1
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