Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

Grades 4-6 - the Foundation / Higher crossover zone.

11th November 2008

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Writing and Simplifying Ratio2 marks
Write the ratio 7 : 21 in the form 1 : n.
2
Vectors2 marks
a is the column vector (-1, 2) and b is (-1, 2). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 3x + 29. Use it to estimate y when x = 2.
5
Error Intervals2 marks
A number y is 80 when truncated to the nearest whole number. Write down the error interval for y.

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