IGCSE Mathematics - International (0607) — October–November 2024, Paper 53
4 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →INVESTIGATION — REVERSE DIFFERENCES. This investigation looks at what happens when you reverse the digits of a number and then find the difference between the new number and the…
Answer this question and get it marked →You can find reverse differences for 3-digit numbers using the same steps. Example: STEP 1: 138; STEP 2: 831; STEP 3: 831 − 138 = 693. Complete this table. You may use any…
Answer this question and get it marked →Anna's working in Question 2(c)(ii) is for the 3-digit number abc. Anna uses similar working for the 2-digit number ab where a b. Use Anna's working to show that your answer to…
Answer this question and get it marked →A 4-digit number abcd, where a d, has a value of 1000a + 100b + 10c + d. Find an expression, in terms of a, b, c and d, for the reverse difference. Your answer should have four…
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