Mathematics
Grade-1
Easy
Question
Write the number comes next.
60, 70, ____, 90, 100
- 75
- 80
- 85
- 71
Hint:
In missing series, there is a common difference between any two consecutive numbers.
The correct answer is: 80
Here, we have to find the missing number.
We have, 60, 70, — , 90, 100.
Clearly, the difference between two numbers is 10.
So, the missing number = 70+10 = 80.
Hence, the correct option is C.
The common difference is generally positive.
