Today is her eleventh birthday

Today is her eleventh birthday

A. 1584 B. 1692 C. 1729 D. 1809 E. 1980

C

The digits add up to 19. In all the others the total is 18.

How many numbers did the student write?

The number of whole numbers present between two given whole numbers, the extremes inclusive is given by the following formula: Y – X + 1

Y = 1000 and X = 1

Now, Y – X = 1000 – 1 = 999

Then, Y – X + 1 = 999 + 1 = 1000

51 and 15,

42 and 24,

or

60 and 06.

Your age repeated three times.

Only one, the next time you take 6 to 30

Now, I am 16 years old.

How old is my sister?

14 years old.

58 years old

10

The answer is 5!

True o False?

True.

230 - 220 x 0,5 = 120 = 5 x 4 x 3 x 2 x 1 = 5!

1 + 1 + 1 + 1 + 1

1 + 1 + 1 + 1 + 1

1 + 1 x 0 + 1 = ?

30

Two possible answers:

1) 4(2 + 2) = 16

2) 8 ÷ 8 = 1