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By writing each number correct to one significant figure, estimate the value of (28.6 + 47.7) / (0.47 x 21.4).
Write 8/25 as a decimal.
One morning the temperature was 5°C. By the evening the temperature had dropped 9°C. Write down the temperature in th…
The cost of a mirror is directly proportional to the square of its width. A mirror of width 40 cm costs $24. Work out…
A café sells hot drinks. On Monday it sells 80 teas, 60 coffees and 40 hot chocolates. On Tuesday it sells 70 teas, 9…
f(x) = 2 - 3x Find