Problem solving, ecology problems and unit review: data and charts
Answers are for parents and teachers.
1
The minuend is the quotient of 12 000 and 40 and the subtrahend is 175. Find the difference.
125
2
A box is 25 cm long, 10 cm wide and 8 cm high. What is its volume in cm³?
2000
3
6 t of waste paper gives 4 200 kg of cardboard. How many kg does 4 t give?
2800
4
Find the mean of 7, 9, 12, 8 and 14.
10
5
Of 30 pupils, 12 like music, 15 like sport and 5 like both. How many like only music?
7