Numbers and Operations

Which digits are missing?

• 3 and 5

• 4 and 8

• 2 and 0

• 6 and 9

• 7 and 1

How many animals are there in the picture?

• 3

• 4

• 5

• 6

• 7

How many legs do the animals have altogether?

• 5

• 10

• 12

• 20

• 14

There are twenty books on a shelf and seven children in a room. How many books will be left on the shelf if each child takes one book?

• 27

• 12

• 13

• 15

• 7

Helena has written down the word KANGAROO three times. How many times did she write the letter A?

• 6

• 1

• 2

• 3

• 9

Fifteen children are playing hide and seek. One of them is the "seeker". After a while, nine children have been found. How many children are still hiding?

• 5

• 4

• 6

• 8

• 7

A dragon has six heads. Every time a hero cuts off one head, three new heads emerge. The hero cuts one head off, and then he cuts off one more head. How many heads does the dragon have now?

• 6

• 8

• 9

• 10

• 12