Questions

A Year 6 primary school arithmetic problem asking to find the unknown addend in the equation ? + 3,006 = 19,005, using inverse subtraction, with step-by-step solution and knowledge explanation.

A Year 6 primary school arithmetic problem requiring multiplication of a 4-digit number by a single digit: 5,907 × 8, with step-by-step solution and knowledge explanation.

This primary school math problem asks to find the number of non-fiction books written by female authors using a partially filled two-way table of book genre and author gender. The solution uses subtraction of known totals to derive the missing value.

This is a junior high school proportionality maths problem: Given that the maximum height h of a golf ball is proportional to the square of its upward speed v, with h=8 when v=20, calculate h when v=35. Learn to set up proportionality equations, find the constant of proportionality, and solve for unknown values.

This geometry problem asks to find the sum of interior and exterior angles for a 16-sided polygon. Learn to apply the interior angle sum formula (n-2)×180° and use the polygon exterior angle theorem to solve both parts of the question.

This middle school math problem asks to calculate Luca's average sailing speed in knots, given he traveled 39km in 3 hours with a conversion factor of 1 knot = 2 km/h. The solution involves finding speed in km/h first, then converting to knots using basic arithmetic and unit conversion principles.

This A-Level Grade 12 Maths problem involves 2D particle motion using east (i) and north (j) unit vectors. Part (a) proves the magnitude of constant acceleration is 2.5 m s⁻² using position vector equations, and part (b) calculates the travel time from point A to B when acceleration changes and motion direction is north-east.

This problem asks to find the vertex coordinates of the transformed curve $y=-f(x)$, given that the vertex of the original curve $y=f(x)$ is (2, -4). It tests understanding of the x-axis reflection transformation rule for functions.

This middle school math problem asks to calculate the expected total value of 60 charity donations, using a proportional line graph to find the value per donation and scale it up to 60 donations. Learn how to interpret linear graphs and use unit rates for proportional scaling.

Solve this primary school math problem: Calculate the total amount Keira pays for a sausage, chips and a samosa using takeaway menu prices, including pence to pounds conversion and decimal addition.

Solve this primary school math problem: Calculate how much more Taha pays than Iowan for their respective takeaway orders, including converting pence to pounds, calculating total costs, and finding the price difference.

Solve this middle school math word problem to find the volume of oil in a half-full cylindrical tank with a 100cm radius and 250cm height, convert cubic centimeters to litres, and round to the nearest litre. Includes step-by-step solutions and core knowledge explanations.