Daily Practice

Numeracy

21st August 1989

5 questions · 8 marks · Grades 1-3 · 76 question types in this band

1
Error Intervals2 marks
A length x is 420 cm, rounded to the nearest 10. Write down the error interval for x.
2
Substitution2 marks
Work out the value of 5x - 12 when x = 6.
3
Conversions and Units1 mark
Convert 2 m into cm.
4
Metric Conversions1 mark
Change 4 m into cm.
5
Averages2 marks
Here are 7 numbers: 21, 31, 26, 21, 29, 31, 23. Work out the mean.

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