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Deposits $(+ £2)$ | Withdrawals $(- £3)$ | Calculation | Outcome |
... | ... | ... | ... |
$4$ | $1$ | $4 \times (+ £2) + 1 \times (- £3)$ | $+ £5$ |
$7$ | $3$ | $7 \times (+ £2) + 3 \times (- £3)$ | $+ £5$ |
$10$ | $5$ | $10 \times (+ £2) + 5 \times (- £3)$ | $+ £5$ |
... | ... | ... | ... |
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?
If the odd numbers on two dice are made negative, which of the totals cannot be achieved?