Mathematics
Grade-1
Easy
Question
10, 20, ______, 40, 50
- 13
- 30
- 70
- 90
Hint:
10s means adding ten to previous number or jump by 10.
The correct answer is: 30
Here, we have to find the missing number 10, 20, ______, 40, 50.
All the numbers end in 0 means it counts by 10s .
= 10 , 20 , 30 , 40 , 50 .
So, the missing number is 30.
Hence, the correct option is (a).
Counting are the act of determining the quantity or the total number of objects in a set or a group.
