Daily Practice

Foundation Plus

30th May 1964

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

1
Ratio2 marks
Red and blue marbles are in the ratio 5 : 7. There are 40 red marbles. How many marbles are there altogether?
2
Vectors2 marks
a is the column vector (3, 6) and b is (7, -3). Work out a + b as a column vector.
3
Probability Trees3 marks
6 of 8 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 = 7x + 28. Use it to estimate y when x = 6.
5
Error Intervals2 marks
A number y is 63 when truncated to the nearest whole number. Write down the error interval for y.

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Any date always gives the same five questions, so a sheet can be set again or shared. All of May 1964, including the monthly compilation PDF.