Find the lower and upper bounds of 12

What is the time difference between 8:30 AM and 3:45 PM on the same day?

George and his friend Jane buy copies of the same book on the internet. George pays $16.95 and Jane pays £11.99 on a day when the exchange rate is $1 = £0.626. Calculate, in dollars, how much more Jane pays.

A carton contains 250 ml of juice, correct to the nearest millilitre. Complete the statement about the amount of juice, j ml, in the carton. ……  j < …..

A doctor starts work at 20 40 and finishes work at 06 10 the next day. How long is the doctor at work? Give your answer in hours and minutes

If a = 3.6 (to 1dp) and b = 14 (to the nearest whole number), fi nd the upper and lower bounds for each of the following:1)ab 2)a/b

Express 7:30 PM in 24-hour clock format.

Convert 480 minutes into hours and minutes.

Given the exchange rate between pound and Australian dollars is £ 1 = $ 1.87 £1=$1.87, convert £ 70 £70 to Australian dollars.

Use the graph to estimate: a the speed, in km/h, of a car travelling at 65 mph b the speed, in mph, of a train travelling at 110 km/h.

Express each quantity in the units given in brackets

How much time passes from 19.35 on Monday to 03.55 on Tuesday?

Ella’s height is 175 cm, correct to the nearest 5 cm. Write down the upper bound of Ella’s height.