Write down the value of 49
7
Change 15 centimetres into millimetres.
150
A teacher writes down a number. They subtract 6 from the number and then divide by 8. Their answer is 81. What number did the teacher write down
654
Write 10 000 as a power of 10
4
Write down the multiple of 9 that is between 20 and 3
27
Sam eats 30% of a 600 g pack of cereal every day. Sam has no cereal left. The cereal is no longer sold in 600 g packs. Instead, the cereal is now sold in 400 g packs. cm [3] Sam wants to continue to eat the same amount of cereal every day. Work out the minimum number of 400 g packs of cereal that Sam must buy to have enough for 7 days. You must show your working
4 with correct working
1 pound = 16 ounces Work out the number of ounces in 3 pounds.
48
Work out 500 + 145
645
The population of an island is 47 000 people. The area of the island is 560 2 . km Calculate the population density of the island in people per km2
83.9… or 84 or 8313 14
Simplify fully 8m + 4 – 2m + 7
3cd or 3dc
javid hires a car for 10 days. He pays £45 for each day. He also pays £30 for insurance. Javid pays with ten £50 notes. Work out how much change he should get.
20
A garage is 5 metres long, correct to the nearest metre. A car is 4.5 metres long, correct to 1 decimal place. Show that the car may not fit in the garage.
4.5 ≤ garage < 4.55 4.5 < car < 4.55
Write the ratio 6 : 2 in the form n : 1
3
1 cup of tea and 1 cup of coffee cost £4.50 3 cups of tea and 1 cup of coffee cost £8.50 Work out the total cost of 4 cups of tea and 3 cups of coffee. You must show all your working
15.5
Work out. 1.2 divide 0.03
40