Level 3
A tank containing some water and 7 identical stones has a mass of 1 kg 235 g. When the 7 stones were taken out, the mass of the tank of water became 759 g. Find the mass of each stone.
(Give the answer in grams.)
Level 3 Jonas took one Math test. For every correct answer, he was awarded 4 points. For every wrong answer, 2 points were deducted. 21 out of 30 questions he answered were correct. How many points did he score?
Level 2
Mr Smith saved a total of $8540 in 6 months. In the first 4 months, he saved $1210 each month. In the 5th month, he saved $1530. How much did he save in the 6th month?
Level 3
Xavier gave 111 of his stamps to Joe, 211 of his stamps to Jason and 311 of his stamps to Kim. He then had 20 stamps left. How many stamps had he at first?
Level 2
Mr Smith saved a total of $8540 in 6 months. In the first 4 months, he saved $1210 each month. In the 5th month, he saved $1530. How much did he save in the 6th month?
Level 3
Mr Pang bought 26 baskets of durians. Each basket contained 48 durians. He sold 136 durians. Then he packed the remaining durians equally into 8 boxes. How many durians were there in each box?