3×6, 12, 21, 15, 18, 45÷9, 8, 7, 6, 5, 63-41, 32, 12, 22, 20, 50+3+15, 68, 70, 60, 78, 2×2+20×0, 22, 44, 24, 4, 33×1-11, 13, 23, -330, 22, 9×8, 56, 64, 81, 72, £2, 20p, 0.20p, 0.020p, 200p, 500g, 0.050kg, 0.50kg, 0.500kg, 0.0500kg, 1l, 100ml, 1000ml, 1ml, 10000ml.

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