Edexcel IGCSE Math A Higher 1.8 C Upper and Lower Bounds Questions

Practise bounds questions by writing lower or upper limits for rounded weights, heights, lengths and decimal measurements.

Exam points

Write the lower or upper bound for a measurement rounded to the nearest 10 cm or 10 g.
Use the degree of accuracy to decide the half-interval for lengths, heights or weights.

[Maximum number: 2]

The weight of a cake is 2.75 kg , correct to 2 decimal places.

(a)

Write down the lower bound of the weight of the cake.

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(b)

Write down the upper bound of the weight of the cake.

Penny has worked out $\frac{81.3 \times 59.2}{1.9^{2}}$ on her calculator.
Her answer is 13332.29917
Penny's answer is not sensible.

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Edexcel IGCSE Math A Higher 1.8 C Upper and Lower Bounds Questions question 1

Question (a)

Question (b)