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Mathematics unknown numbers

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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

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