Foundation Grade 3 Mini Test A
A 45-minute, 40-mark test using only authored grade 3 questions, focused on number, fractions, ratio, quadratics and geometry.
Questions
Question 1 [1 marks]
Quadratics
State whether the graph of y = 8 - 3x^2 is u-shaped or n-shaped.
Question 2 [2 marks]
Fractions, Decimals and Percentages
Work out 12% of £450.
Question 3 [2 marks]
Angles and Geometrical Reasoning
Quadrilateral D has vertices at (1, 1), (4, 1), (4, 2) and (1, 3). Quadrilateral D is reflected in the line y = x to give quadrilateral D'.
Question 4 [2 marks]
Ratio and Proportion
Write the ratio 9:36 in the form 1:n.
Question 5 [3 marks]
Angles and Geometrical Reasoning
Column vectors are written in the form (x, y), where x is the top (horizontal) number and y is the bottom (vertical) number. u = (4, 1) and v = (-2, 5).
Work out u + v as a column vector.
Work out u - v as a column vector.
Work out 3v as a column vector.
Question 6 [3 marks]
Ratio and Proportion
A football squad has 24 players. The ratio of forwards to midfielders to defenders is 3:5:4. Work out the percentage of the squad who are defenders.
Question 7 [3 marks]
Number and Calculation
Work out (7.2 x 10^8) / (4 x 10^3). Give your answer in standard form.
Question 8 [7 marks]
Ratio and Proportion
Fatima wants to change £400 into US dollars. Bank rate: £1 = 1.24 dollars, with no fee. Post Office rate: £1 = 1.30 dollars, but a fee of £15 is taken from the £400 before the exchange rate is applied.
Work out how many dollars Fatima would get from the bank.
Work out how many dollars Fatima would get from the Post Office.
State which option gives Fatima more dollars, and by how much, ft from (a) and (b).
Question 9 [1 marks]
Angles and Geometrical Reasoning
Write down the locus of points equidistant from two intersecting straight lines.
Question 10 [1 marks]
Number and Calculation
Work out the smallest 3-digit integer that is divisible by both 11 and 13.
Question 11 [2 marks]
Angles and Geometrical Reasoning
Triangle XYZ is isosceles, with XY = XZ. Angle X = 48 degrees.
Work out the size of angle Y.
Give a reason for your answer to part (a).
Question 12 [2 marks]
Number and Calculation
A student writes a measurement as 0.72 correct to 2 decimal places. Work out the error interval for the true value.
Question 13 [3 marks]
Ratio and Proportion
Compare two shops. Shop A gives the rate £1 = 1.10 euros. Shop B gives the rate £1 = 1.12 euros but charges a fixed £2 fee per transaction. A customer wants to change £100. Which shop gives the customer more euros? Show your working.
Question 14 [2 marks]
Number and Calculation
Calculate 34 x 27.
Question 15 [3 marks]
Ratio and Proportion
Inverse proportion. 8 identical machines take 15 hours to complete a job. How many hours would 12 identical machines take to complete the same job, assuming they work at the same rate?
Question 16 [3 marks]
Number and Calculation
Work out (9 + 3^2) / 3 - 1.
Model solutions
| Question 1[1 mark] | |
|---|---|
| Answer or working | Marks |
| n-shaped | B1 |
| Question 2[2 marks] | |
|---|---|
| Answer or working | Marks |
| 0.12 x 450 | M1oe |
| 54 (pounds) | A1 |
| Final answer: £54 | |
| Question 3[2 marks] | |
|---|---|
| Answer or working | Marks |
| x and y coordinates swapped (oe), at least two correct vertices shown | M1 |
| all four vertices correct: (1,1), (1,4), (2,4), (3,1) | A1cao |
| Final answer: (1, 1), (1, 4), (2, 4), (3, 1) | |
| Question 4[2 marks] | |
|---|---|
| Answer or working | Marks |
| divide both parts by 9 | M1oe |
| 1:4 | A1cao |
| Question 5[3 marks] | |
|---|---|
| Answer or working | Marks |
| (2, 6) | B1cao |
| (6, -4) | B1cao |
| (-6, 15) | B1cao |
| Final answer: (2, 6) | (6, -4) | (-6, 15) | |
| Question 6[3 marks] | |
|---|---|
| Answer or working | Marks |
| 24 / 12 = 2 oe (one share found) | M1 |
| defenders = 4 x 2 = 8 oe, then 8/24 x 100 | M1dep |
| awrt 33.3% (exact value 100/3%) | A1 |
| Final answer: 33.3% (1 dp); exact value 100/3% | |
| Question 7[3 marks] | |
|---|---|
| Answer or working | Marks |
| 1.8 seen (or 7.2/4 = 1.8 seen) | M1 |
| correct index, 10^5, seen (10^8 / 10^3 = 10^5) | M1 |
| 1.8 x 10^5 | A1cao |
| Question 8[7 marks] | |
|---|---|
| Answer or working | Marks |
| 400 x 1.24 | M1oe |
| 496 | A1cao |
| 400 - 15 (= 385) | M1oe |
| 385 x 1.30 | M1oe |
| 500.50 | A1cao |
| Post Office stated, ft from (a) and (b) | B1ft |
| $4.50 more, ft from (a) and (b) | A1ft |
| Final answer: $496 | $500.50 | The Post Office gives 4.50 dollars more | |
| Question 9[1 mark] | |
|---|---|
| Answer or working | Marks |
| the two angle bisectors of the lines (both bisectors) | B1cao |
| Final answer: The two angle bisectors of the intersecting lines. | |
| Question 10[1 mark] | |
|---|---|
| Answer or working | Marks |
| 143 | B1cao |
| Question 11[2 marks] | |
|---|---|
| Answer or working | Marks |
| 66 degrees | B1cao |
| base angles of an isosceles triangle are equal | B1oe |
| Final answer: 66 degrees | Base angles in an isosceles triangle are equal. | |
| Question 12[2 marks] | |
|---|---|
| Answer or working | Marks |
| recognise half of last decimal place is 0.005 and set interval 0.72 +/- 0.005 | M1 |
| 0.715 <= x < 0.725 | A1cao |
| Question 13[3 marks] | |
|---|---|
| Answer or working | Marks |
| calculate euros from Shop A: 100 * 1.10 = 110 | M1 |
| calculate euros from Shop B after fee: (100 - 2) * 1.12 = 98 * 1.12 | M1 |
| Shop B gives more: Shop A 110 euros, Shop B 109.76 euros so Shop A gives more | A1cao |
| Final answer: Shop A gives more. Shop A: 110 euros. Shop B: (100 - 2) * 1.12 = 109.76 euros. | |
| Question 14[2 marks] | |
|---|---|
| Answer or working | Marks |
| correct method shown, e.g. 34 x 20 and 34 x 7 or column method with at least one correct partial product | M1 |
| 918 | A1cao |
| Question 15[3 marks] | |
|---|---|
| Answer or working | Marks |
| use inverse proportion: time proportional to 1/machines, or compute total machine-hours 8 x 15 = 120 | M1 |
| divide total machine-hours by 12 to find time for 12 machines | M1 |
| 10 hours | A1cao |
| Final answer: 10 hours. (Total work = 8 x 15 = 120 machine-hours. 120/12 = 10.) | |
| Question 16[3 marks] | |
|---|---|
| Answer or working | Marks |
| evaluate index 3^2 = 9 and bracket 9 + 9 = 18 | M1 |
| divide 18 / 3 = 6 | M1 |
| 5 | A1cao |