Numeracy Skills for Teachers Flashcards
6 cards from real QTS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Numeracy Skills for Teachers flashcards as text
A pupil's average score across 4 tests is 74. After a 5th test, the average drops to 70. What did the pupil score on the 5th test?
Answer: 54
Total after 4 tests = 4 × 74 = 296. Total after 5 tests = 5 × 70 = 350. 5th score = 350 − 296 = 54.
What is 0.6 × 0.4?
Answer: 0.24
0.6 × 0.4 = 0.24. Think of it as 6 × 4 = 24, then adjust the decimal by two places.
A class fundraiser raises £156. This is 130% of the target. What was the original target?
Answer: £120
£156 ÷ 1.30 = £120. The original target was £120.
What is the perimeter of an equilateral triangle with sides of 8.4 cm?
Answer: 25.2 cm
An equilateral triangle has three equal sides. Perimeter = 3 × 8.4 = 25.2 cm.
A data set has values: 5, 9, 9, 12, 15, 9, 7. What is the mode?
Answer: 9
The mode is the value that appears most frequently. 9 appears three times, more than any other value.
Express 72 as a product of its prime factors.
Answer: 2³ × 3²
72 = 8 × 9 = 2³ × 3². The prime factorisation of 72 is 2 × 2 × 2 × 3 × 3 = 2³ × 3².