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Mathematics, English, Education
5th -
9thgrade
Erasmus+ CLIL Math Riddles
11 questions
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- 1. Multiple Choice
Mikołaj’s riddle: Chris has his eyes covered. In front of the boy in the basket there are 7 red apples and 13 green apples. What minimum number of apples must Chris take to make sure that two of them are the same colour?
minimum 3 of apples.
minimum of 6 apples
minimum of 4 apples
minimum of 2 apples
- 2. Multiple Choice
Krzysztof's riddle: Which of the actions is first: multiplication or division?
multiplication
division
- 3. Multiple Choice
Kinga’s riddle: How many times can you subtract 5 from 25?
five times
twenty times
once
twice
- 4. Multiple Choice
Amanda's riddle: The sum of three numbers is 42. The difference between the two smallest is 6, and their sum is 4/3 of the largest number. What three numbers meet these conditions?
9, 15, 18
10, 12, 20
7, 17, 18
9, 14, 19
- 5. Multiple Choice
Tymon ’s riddle: How many nines are there between 1 and 100?
11
12
18
20
- 6. Multiple Choice
Weronika’s riddle: At work, Max is to write numbers on houses on Flower Street. He has to prepare numbers from 1 to 100. How many times will he write the number 8?
twelve times
eleven times
twenty times
sixteen times
- 7. Multiple Choice
Kacper’s riddle: Take two numbers, such that the square of the first, plus the square of the second, shall equal 8; while the first, plus the product of the first and second, shall equal 6. What are the two numbers?
2 and 3
3 and 4
2 and 2
3 and 3
- 8. Multiple Choice
Igor’s riddle: Janusz found 20 pounds, but he has 30 now. How?
A minute later he borrowed 10 pounds from a friend.
He is a magician and turned twenty pounds into thirty pounds.
He already had £10.
- 9. Multiple Choice
Adam's riddle: What is heavier: a kilogram of feathers or a kilogram of apples?
a kilo of feathers
a kilo of apples
both weigh the same
- 10. Multiple Choice
Szymon's riddle: Antek has 119 zlotys, Wiktor has 67 zlotys less than Antek, and Szymon has 5 times more than Wiktor.
How much money do boys have together?
312
171
431
454
- 11. Multiple Choice
Bartek's question: What is the result of 2+2*2?
10
8
2
6
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