Which one of the following is not mathematical sign for operations?

• +

• -

• @

• ÷

What is the sum of 17 and 71?

• 54

• 88

• 1207

• 0,24

What is the product of 6 and 5?

• 30

• 1

• 1,05

• 11

What is the difference between 31 and 13?

• 44

• 3

• 18

• 1

What is the face value of 4 in 14 200?

• 10 000

• 4

• 14 000

• 4000

What is the place value of 4 in 14 200?

• 10 000

• 4

• 14 000

• 4000

2; 3;5;7;11; __; __; __ what are next three numbers.

• 13;15;17

• 12;14;15

• 13;14;15

• 13;17;19

3 apples are shared equally by two students. How many apples does each one get?

• 2

• 1

• 1,5

• 3

What is double 13?

• 3×13

• 13÷2

• 26

• 1313

What is half of 13?

• 6,5

• 7

• 9

• 8,2