What shape is this?

• cube

• cuboid

• square

• rectangle

Which one is number "nineteen"?

• 16

• 17

• 18

• 19

What shape is this?

• cube

• cuboid

• square

• triangle

How many cubes are there?

• 2

• 3

• 4

• 5

What number is this?

• 4 tens

• 4

• 40

• 4 ones

What number is this?

• twenty

• ninety

• nineteen

• nineten

What number is this?

• 65

• 56

• 57

• 75

What numbers are missing?

• 50, 40, 70

• 40, 50, 70

• 30, 40, 60

Which one is number "eigthteen"?

• 17

• 18

• 19

• 20

Fill in the blanks:

27 = ____ tens + 7 ones