Page 29 - Whole Numbers (Addition and Subtraction)

8. (a) Lea has already run 4 000 m of a 10 000 m race. How far
does she still have to run?

0 1 000 2 000 3 000 4 000 5 000 6 000 7 000 8 000 9 000 10 000

(b) Ben has already run 4 600 m of a 10 000 m race. How far
does he still have to run?

0 1 000 2 000 3 000 4 000 5 000 6 000 7 000 8 000 9 000 10 000

9. How much is each of the following? Try to be smart and find
the answers with as little work as possible.
(a) 10 000 − 4 000 (b) 10 000 − 4 600

(c) 7 000 − 3 000 (d) 7 500 − 3 500
(e) 7 267 − 3 267 (f) 8 365 − 5 000
(g) 6 000 − 2 000 (h) 6 000 − 1 990
(i) 6 000 − 2 010 (j) 6 000 − 3 010

10. Calculate each of the following.
(a) 4 000 + 6 000 (b) 4 600 + 5 400
(c) 7 000 + 3 000 (d) 6 800 + 3 200
(e) 5 000 + 4 000 (f) 5 300 + 4 700

(g) 3 000 + 4 000 (h) 2 060 + 4 040

11. Find the missing number in each case. You can do it in steps,
and use arrows to show your thinking if you wish.
(a) 4 287 + . . . = 4 300 (b) 4 690 + . . . = 5 000

(c) 5 624 + . . . = 6 000 (d) 5 624 + . . . = 8 000
(e) 3 063 + . . . = 4 000 (f) 3 063 + . . . = 6 000
(g) 3 063 + . . . = 6 400 (h) 3 063 + . . . = 6 437

12. How much is each of the following? You can use the work you
did in the previous question.
(a) 8 000 − 5 624 (b) 6 437 − 3 063

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