Mathematics
Grade-2
Easy
Question
10 + 11 = _________________
- 12
- 20
- 21
- 22
Hint:
Use Double fact and near Double fact to obtain the value of the addition.
The correct answer is: 21
<*> By using the Double fact and near Double fact we get:
* Use doubles fact 10 + 10 = 20
* 10 + 11 is one more than 10 + 10.
* Near Doubles fact: 10 + 11 = 21.
<<*>>Hence, we can say that the value of the addition 10 + 11 is 21.
* Addition means summing up two or more numbers or values to get another number.
*The property of addition is to increase the value by adding another value to it.
