2ESO: Math Questions | Baamboozle - Baamboozle | The Most Fun Classroom Games!

English 20 Public

Questions for 2ESO math class

Study Slideshow

Calculate and write, step by step, the process for arriving at the solution. [(56 : 7 – 6)3 + 4]2 : (8 – 5)2

[(56 : 7 – 6)3 + 4]2 : (8 – 5)2 = [(8 – 6)3 + 4]2 : 32 = [8 + 4]2 : 32 = 122 : 9 = 144 : 9 = 16

20

Which of these are multiples of 11? 120 455 352 495 462 909

Multiples of 11 → 352, 495 y 462

15

Is the number 6 a divisor of 30? Explain why.

Yes, because 30 : 6 = 5.

10

Calculate: mín.c.m. (12, 24, 36)

20

Which of these are multiples of 5? 120 455 352 495 462 909

Multiples of 5 → 120, 455 y 495

10

Which of these are multiples of three? Explain why. 20 15 49 13

20 15 49 13 15, because 15 = 5 · 3

10

Is the number 64 a multiple of 4? Explain.

Yes, because 16 · 4 = 64.

10

Calculate and write, step by step, the process for arriving at the solution. 81 : [(16 · 4 – 5 · 8)2 : (12 – 4)2]

81 : [(16 · 4 – 5 · 8)2 : (12 ‒ 4)2] = 81 : [(64 – 40)2 : 82] = 81 : [242 : 82] = 81 : 32 = 81 : 9 = 9

20

Is the number 13 a divisor of 64? Explain.

No, because 64 : 13 = 4.92

10

Which of these numbers is a divisor of 48? 20 11 16 9

16, because 48 : 16 = 3

10

Calculate and write, step by step, the process for arriving at the solution. (50 : 5 – 23 )2 + 3 · (6 · 3 – 4 · 4)3

(50 : 5 – 23 )2 + 3 · (6 · 3 – 4 · 4)3 = (10 – 8)2 + 3 · 23 = 22 + 3 · 8 = 4 + 24 = 28

20

Calculate: máx.c.d. (60, 72, 84)

20

The bus on line A passes a certain stop every 12 minutes, the bus on line B passes every 18 minutes, and the bus on line C passes every 24 minutes. If they all coincide at 10 a.m., at what time do they coincide again?

20

One comet is visible from Earth every 24 years and the other every 36 years. The last year they were visible together was 1944. In which year will they coincide again?

20

Silvia visits her grandmother every 8 days and her brother Alberto every 14 days. When will they visit each other again? How many visits will each of them have made to their grandmother?

20

Is the number 155 a multiple of 31? Explain.

Yes because 155 = 31 · 5.

10