Corrections to Primary Mathematics 4A
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This page last updated August 27, 2005


         
  p. 3 second arrow 46,934; 47,924; 48,914
  p. 3 third arrow 32,109; 31,209; 32,901
  p. 10 Learning Task 8-11, p. 17 #10 answer is 1000
  p. 13 first arrow

factors are
1 x 30
2 x 15
3 x 10
4 is not a factor
5 x 6
6 is already found, stop here
  p. 17 number cards First set should be 4587.
  p. 88 Exercise 17 #2(i) Answer should be 9/10
  p. 115 Mental Math 4 #16 Answer should be 88,500
  p. 118 Mental Math 16 #1 Answer should be 1 1/3
  p. 118 Mental Math 16 #2 Answer should be 1 1/4