Daily Practice - Foundation Plus
Grades 4-6 - the Foundation / Higher crossover zone.
15th February 2025
- 1Ratio2 marks
Red and blue raffle tickets are in the ratio 5 : 9. There are 60 red raffle tickets. How many raffle tickets are there altogether?
- 2Vectors2 marks
a is the column vector (7, 6) and b is (1, -1). Work out a + b as a column vector.
- 3Probability Trees3 marks
7 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Scatter Graphs3 marks
A line of best fit on a scatter graph has equation y = 9x + 34. Use it to estimate y when x = 9.
- 5Error Intervals2 marks
A number y is 74 when truncated to the nearest whole number. Write down the error interval for y.
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