Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Upcoming SlideShare
×

# Mathematics unknown numbers

1,422 views

Published on

• Full Name
Comment goes here.

Are you sure you want to Yes No
Your message goes here
• Be the first to comment

• Be the first to like this

### Mathematics unknown numbers

1. 1. Maths Monkey Muddle
2. 3. ?
3. 4. + = 3
4. 5. Unknown Numbers + = X ? Y
5. 6. + =
6. 7. + =
7. 8. + =
8. 9. + =
9. 10. + =
10. 11. + =
11. 12. a)16 + = 38 22 38 - 16 2 2
12. 13. b)34 + = 60 26 60 - 34 2 6
13. 14. c) + 27 = 138 111 138 - 27 1 1 1
14. 15. d) + 69 = 85 16 85 - 69 1 6
15. 16. e)618 = 308 + 310 618 - 308 1 0 3
16. 17. Question 1 : Mat has 23 chickens. He buys 6 more chickens. How many chickens has he now? 23 + 6 = 29 Answer: He has 29 chickens now. 23 + 6 ____ 9 2
17. 18. Question 2 : Make up a number story to a given number sentence. 46 + 12 = 58 I have 46 stickers and Kumar has 12 stickers. Altogether we have 58 stickers.
18. 19. Complete the worksheet.
19. 20. Exercise 1 : Find the unknown numbers. 1. 20 + ( ) = 38 2. 44 + ( ) = 70 3. ( ) + 35 = 148 4. ( ) + 43 = 353 5. 588 + ( ) = 699 6. ( ) + 400 = 800 7. 48 = 5 + ( ) 8. 473 = ( ) + 123 Exercise 2 : Solve the problems. 1. James has 18 pencils. His brother has 4 pencils. How many pencils do they have?     2. Tan and Kong have 243 marbles. Kong has 80 marbles. How many marbles does Tan have?
20. 21. The End