Prepared by: Mohamad Heiry Bin Abd Rahim

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Presentation transcript:

Prepared by: Mohamad Heiry Bin Abd Rahim Addition Prepared by: Mohamad Heiry Bin Abd Rahim

+ Guess the answer… Addition symbol Back of this square have a symbol, it has four hand. Normally when we use this symbol the number will increase.

Start from the first number… Try this… 1 + 1 = 1 + 2 = 1 + 3 = 1 + 4 = 1 + 5 = 1 + 6 = 1 + 7 = 2 3 4 5 6 7 8 3 4 5 6 7 8 9 2 + 1 = 2 + 2 = 2 + 3 = 2 + 4 = 2 + 5 = 2 + 6 = 2 + 7 = 4 5 6 7 8 9 10 3 + 1 = 3 + 2 = 3 + 3 = 3 + 4 = 3 + 5 = 3 + 6 = 3 + 7 = Answer in 30 seconds..

Use addition in real-life situation Addition with the highest total of 10 000 Unit : 2 Addition without regrouping Addition with regrouping Use addition in real-life situation Exercises

2.1 Addition Without regrouping Add two numbers Add three numbers Home Add two numbers Add three numbers Example: Example: 1243 + 210 + 25 = 1478 2 532 + 1265 = 3797 Step 1: + 1 2 4 3 2 1 0 1 4 5 3 + 2 5 3 2 1 2 6 5 3 7 9 7 Then, Step 2: + 1 4 5 3 2 5 1 4 7 8

2.2 Addition With regrouping Add three numbers Add two numbers Home Add three numbers Add two numbers Click and choose

2.2 Addition With regrouping Add two numbers 2 504 + 1627 = 4131 Home Back Add two numbers 2 504 + 1627 = 4131 1 1 + 2 5 0 4 1 6 2 7 4 1 3 1

2.2 Addition With regrouping Add three numbers Home Back Add three numbers 1 723 + 2 182 + 1 306 = 5 211 Step; Add the ones and regrouped Add the tens and regrouped Add the hundreds and regrouped Finally, add the thousands a. b. 1 c. d. 1 1 + 1 1 + 1 1 + 1 7 2 3 2 1 8 2 1 + 1 7 2 3 2 1 8 2 1 1 1 7 2 3 2 1 8 2 2 1 1 1 7 2 3 2 1 8 2 5 2 1 1

2.3 Use addition in real-life situation Home Ali plucks 1 470 rambutans from a rambutan tree. Later, his Father plucks 754 rambutans from another tree. How many rambutans do they collect? Ali = 1 470 rambutans Ali’s father = 754 rambutans 1 470 + 754 = 2 224 1 1 + 1 4 7 0 7 5 4 2 2 2 4

Exercises Try this.. 1. 409 + 38 = A. 711 B. 447 C. 437 D. 473 + Home Try this.. 1. 409 + 38 = A. 711 B. 447 C. 437 D. 473 + 2 5 3 8 6 3 6 2 4. What is the missing number? 2. 6 628 + 193= A. 1 376 C. 8 900 B. 3 824 D. 8 910 A. 6 711 C. 6 812 B. 6 721 D. 6 821 5. There are 3 780 fish in the fish pond, 1 288 more fish are added into the pond. How many fish are there in the pond? 3. 420+ 123 = A. 543 B. 544 C. 599 D. 583 A. 4 372 C. 5 068 B. 4 490 D. 5 128

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