1. Algebra with Whole Numbers
Writing Expressions

2. Exercise 10

3. Write expressions for:
1. 1 more than x.
2. 2 less than y.
x more than 5
y less than 6.
the sum of x and 9.
the sum of 4 and y.
7 times x.
y times 8.
x + 1
y - 2
5 + x
6 - y
x + 9
4 + y 7x 8y

4. True or false?
x divided by 3.

5. True
x divided by 3.

6. True or false?
4 divided by y.

7. False
4 divided by y.

8. True or false?
2 divided into x.

9. False
2 divided into x.

10. True or false?
y divided into 9.

11. True
y divided into 9.

12. True or false?
The product of 8 and x.

13. False
The product of 8 and x.

14. True or false?
The product of y and 6.

15. True
The product of y and 6.

16. True or false?
y added to x.

17. True
y added to x.

18. True or false?
y subtracted from x.

19. False
y subtracted from x.

20. True or false?
x multiplied by y.

21. True
x multiplied by y.

22. True or false?
x divided by y.

23. False
x divided by y.

24. True or false?
z more than y.

25. False
z more than y.

26. True or false?
z less than y.

27. True
z less than y.

28. True or false?
z times y.

29. True
z times y.

30. True or false?
z divided into y.

31. False
z divided into y.

32. True or false?
the sum of z and x.

33. False
the sum of z and x.

34. True or false?
the product of z and x.

35. True
the product of z and x.

36. Write the expression
5 added to the result of multiplying 2 by x.

37. Write the expression
2 times the result of adding 5 to x.

38. Write the expression
4 subtracted from the result of multiplying 3 by x

39. Write the expression
3 times the result of subtracting 4 from x

40. Write the expression
5 added to the result of dividing x by 2.

41. Write the expression
2 divided into the result of adding 5 to x.

42. Write the expression
4 subtracted from the result of dividing x by 3.

43. Write the expression
3 divided into the result of subtracting 4 from x

44. Write the expression
1 more than the square of x

45. Write the expression
squaring the result of one more than x.

46. Find the cost of n articles if each article costs $d.

47. Find the cost of each article if n articles cost $d.

48. A polygon has n sides each of length d metres. Find its perimeter.

49. A polygon with n equal sides has a perimeter of d metres
A polygon with n equal sides has a perimeter of d metres. Find the length of each side.

50. There are n power poles all in a straight line
There are n power poles all in a straight line. If they are each d metres apart find the distance between the first pole and the last pole.

51. There are n equally spaced poles in a straight line
There are n equally spaced poles in a straight line. If the distance between the first pole and the last pole is d metres find the distance between each pole.

52. A carpenter cuts a length of wood d cm long into equal pieces
A carpenter cuts a length of wood d cm long into equal pieces. Find the length of each piece if he makes n cuts.

53. A carpenter cuts a length of wood into pieces each d cm long
A carpenter cuts a length of wood into pieces each d cm long. Find the original length of wood if he makes n cuts.

54. Write down the 3 consecutive whole numbers which
begin with n.
have n as their middle number
n, n+1, n+2
n-1, n, n+1

55. Write down the 3 consecutive even numbers which
begin with 2n.
have 2n as their middle number
2n, 2n+2, 2n+4
2n-2, 2n, 2n+2

56. Write down the 3 consecutive odd numbers which
begin with 2n - 1.
have 2n - 1 as their middle number
2n-1, 2n+1, 2n+3
2n-3, 2n-1, 2n+1