1. MultiplicationDivisionSubtractionAddition Mathematics Year 2 Click on the topic that you want Objectives

2. MultiplicationDivisionSubtractionAddition 1.To review and reinforce the mathematics practice done to date (addition, subtraction, multiplication and division). 2.To count the number, to understand the composition, the order and size of the number, how to read and write, and the meaning of addition, subtraction, multiplication and division. Objectives

3. MultiplicationDivisionSubtractionAddition How to solve the problem? Add without regrouping h t o 364 First, add the ones. +223 Then, add the tens. _587 Finally, add the hundreds. + exercise

4. MultiplicationDivisionSubtractionAddition Let’s try Add. 1.143 + 435 = ( )5. 311 + 264 = ( ) 2.426 + 13 = ( ) 6. 567 + 131 = ( ) 3.80 + 109 = ( )7. 752 + 34 = ( ) 4.230 + 24 = ( )8. 281 + 316 = ( ) Let’s click me check your answer!

5. MultiplicationDivisionSubtractionAddition Let’s try Add. 1. 143 + 435 =(578)5. 311 + 264 =(575) 2. 426 + 13 =(439)6. 567 + 131 =(698) 3. 80 + 109 =(189)7. 752 + 34 =(786) 4. 230 + 24 =(254)8. 281 + 316 =(597)

6. MultiplicationDivisionSubtractionAddition Subtract without regrouping Take out 6 from 9 h t o First, subtract the ones. 769 Then, subtract the tens. -506 Finally, subtract the hundreds 263 exercise

7. MultiplicationDivisionSubtractionAddition Subtract 1. 547 - 316 = ( )5. 742 - 521 = ( ) 2. 767 - 111 = ( )6. 754 - 311 = ( ) 3. 311 - 201 = ( )7. 506 - 105 = ( ) 4. 488 - 232 = ( )8. 989 - 222 = ( ) Let’s try Let’s click me check your answer!

8. MultiplicationDivisionSubtractionAddition Subtract 1. 547 - 316 =(231)5. 742 - 521 =(221) 2. 767 - 111 =(656)6. 754 - 311 =(443) 3. 311 - 201 =(110)7. 506 - 105 =(401) 4. 488 - 232 =(256)8. 989 - 222 = (767) Let’s try

9. MultiplicationDivisionSubtractionAddition Multiplication Recognize multiplication as repeated addition ++ 4+4+4 = 12 There are 3 groups of 4 flowers 3 x 4 = 12 Three times four equals twelve Four plus four plus four equals twelve Exercise 1

10. MultiplicationDivisionSubtractionAddition 1. Let’s try Complete the number sentences 7 + 7 = ( )2 x 7 = ( ) 2. 3 + 3 + 3 = ( ) 3 x 3 = ( ) Let’s click me to check your answer!

11. MultiplicationDivisionSubtractionAddition 1. Let’s try Complete the number sentences 7 + 7 = (14)2 x 7 = (14) 2. 3 + 3 + 3 = (9) 3 x 3 = (9) Excellent! Next

12. MultiplicationDivisionSubtractionAddition Multiplication Table X12345678910 1123456789 22468 1214161820 336912151821242730 4481216202428323640 55101520253035404550 66121824302632485460 77142128354249566370 88162432404856647280 99182736455463728190 10 2030405060708090100 Exercise 2

13. MultiplicationDivisionSubtractionAddition Let’s try 1. 8 x 4 = ( )5. 9 x 3 = ( ) 2. 5 x 5 = ( )6. 7 x 2 = ( ) 3. 9 x 1 = ( )7. 8 x 5 = ( ) 4. 6 x 4 = ( )8. 7 x 1 = ( ) Multiply Let’s click me to check your answer!

14. MultiplicationDivisionSubtractionAddition Let’s try 1. 8 x 4 = (32)5. 9 x 3 = (27) 2. 5 x 5 = (25) 6. 7 x 2 = (14) 3. 9 x 1 = (9 )7. 8 x 5 = (40) 4. 6 x 4 = (24)8. 7x 1 = (7 ) Multiply Exercise 3

15. Know by heart multiplication table x12345 123456789123456789 123456789123456789 2 4 6 8 10 14 16 3 6 9 15 18 21 24 27 4 8 12 16 20 24 28 32 36 5 10 20 25 30 35 40 45 Which pair has the same product? Let’s click me to check your answer!

16. Know by heart multiplication table x12345 123456789123456789 123456789123456789 2 4 6 8 10 14 16 3 6 9 15 18 21 24 27 4 8 12 16 20 24 28 32 36 5 10 20 25 30 35 40 45 18 15 12 5 Well done! 5 18 15 Next

17. MultiplicationDivisionSubtractionAddition 5 x 1 = 5 1 x 5 = 5 5 x 1 1 x 5 5 6 x 2 = 12 4 x 3 = 12 6 x 2 4 x 3 12 Next

18. MultiplicationDivisionSubtractionAddition 5 x 3 = 15 3 x 5 = 15 5 x 3 3 x 5 15 9 x 2 = 18 6 x 3 = 18 9 x 2 6 x 3 18 Exercise 4

19. MultiplicationDivisionSubtractionAddition Let’s try 1. 8 x ( ) = 325. 9 = ( ) x 3 2. 5 x ( ) = 456. 12 = 6 x ( ) 3. ( ) x 1 = 87. 21 = ( ) x 3 4. ( ) x 4 = 28 8. 36 = ( ) x 4 Multiply Let’s click me to check your answer!

20. MultiplicationDivisionSubtractionAddition Let’s try 1. 8 x (4) = 325. 9 = (3) x 3 2. 5 x (9) = 456. 12 = 6 x (2) 3. (8) x 1 = 87. 21 = (7) x 3 4. (7) x 4 = 28 8. 36 = (9) x 4 Multiply

21. MultiplicationDivisionSubtractionAddition Recognize division as sharing equally Division Miss Lee distributes 8 cake among 2 pupils. Let’s see how Miss Lee does it. Each pupils will get the same number of balls. Sharing involves distributing objects, one by one until a the objects are finished. Next

22. MultiplicationDivisionSubtractionAddition Recognize division as sharing equally Division 8 ÷ 2 = 4 8 divided by 2 equals 4. So, each pupils gets cakes. 4 Next

23. MultiplicationDivisionSubtractionAddition Recognize division as grouping Division Let’s make group of 5 cups of coffee. How many groups do you get ? Next

24. MultiplicationDivisionSubtractionAddition Recognize division as grouping Division 20 ÷ 5 = 4 20 divided by 5 equals 4 So, I get groups. 4 4 5 √ 20 20 Exercise 1

25. MultiplicationDivisionSubtractionAddition 1. Let’s try Divided. Then, write the number sentences 2. ÷= ÷= Let’s click me to check your answer!

26. MultiplicationDivisionSubtractionAddition 1. Let’s try Divided. Then, write the number sentences 2. 2874 ÷= 12 ÷ 4 = 3 Very good! Exercise 2

27. MultiplicationDivisionSubtractionAddition Let’s try 1. 24÷ 4 = ( )5. 27÷ 3 = ( ) 2. 60÷ 5 = ( ) 6. 20÷ 2 = ( ) 3. 5 ÷ 1 = ( )7. 33÷ 3 = ( ) 4. 32÷ 4 = ( )8. 7 ÷ 1 = ( ) Division Let’s click me to check your answer!

28. MultiplicationDivisionSubtractionAddition Let’s try 1. 24÷ 4 = (6)5. 27÷ 3 = (9) 2. 60÷ 5 = (6) 6. 20÷ 2 = (10) 3. 5 ÷ 1 = (5)7. 33÷ 3 = (11) 4. 32÷ 4 = (8)8. 7 ÷ 1 = (7) Division Exercise 3

29. MultiplicationDivisionSubtractionAddition Let’s try 1. 18 ÷ ( ) = 25. 9 ÷ ( ) = 3 2. 25 ÷ ( ) = 56. 6 = ( ) ÷ 2 3. ( ) ÷ 1 = 87. 21 ÷ ( ) = 7 4. ( ) ÷ 4 = 9 8. 4 = ( ) ÷ 4 Multiply Let’s click me to check your answer!

30. MultiplicationDivisionSubtractionAddition Let’s try 1. 18 ÷ (9) = 25. 9 ÷ (3) = 3 2. 25 ÷ (5) = 56. 6 = (12) ÷ 2 3. (8) ÷ 1 = 87. 21 ÷ (3) = 7 4. (36) ÷ 4 = 9 8. 4 = (16) ÷ 4 Multiply

32. The end