Level 1
The sum of the value of the digit '1' in 2517 and value of the digit '0' in 6019 is          .
1 m
Level 1
From 1 to 10
Write 1 in words.
1 m
Level 1
Look at the numbers. The even number is             .
125, 583, 438
1 m
Level 1
The difference of the values of the digits '9' in 9089 is          .
1 m
Level 1
What is the missing number in the blank? 2 000 000 + 50 000 + 8 000 + 700 = _______
1 m