Level 2
May wanted to buy a red pen that cost $2.45 and a black pen that cost $2.25. After checking her wallet, she found that she was short of $0.85. How much money did she have in her wallet?
Level 2
Vinz bought 58 ℓ of concentrated juice. After he had used the juice for the party, he had 13 ℓ of concentrated juice left. How many ℓ of concentrated juice did he use?
Level 3
In a table-tennis competition, every player plays against every other player twice. Every player plays the same number of games. There are a total of 56 games played. How many players are there?
Level 2
Adam has 30 blue stickers and 70 red stickers.
After giving away the same number of stickers,
the ratio of the blue stickers and the red stickers becomes 1 : 3.
How many stickers are given away?
Level 3 Oscar had two identical wooden cuboid measuring 28 cm by 7 cm by 9 cm. He glued them together to form a solid as shown. He then painted the whole solid in white paint. After that, he cut the solid into 1-cm cubes.
How many 1-cm cubes did he get?
How many 1-cm cubes had none of its faces painted white?
Level 3 Oscar had two identical wooden cuboid measuring 28 cm by 7 cm by 9 cm. He glued them together to form a solid as shown. He then painted the whole solid in white paint. After that, he cut the solid into 1-cm cubes.
How many 1-cm cubes did he get?
How many 1-cm cubes had none of its faces painted white?
