Question
Make and ten and find 9 + 9=
- 18
- 99
- 10
- 19
Hint:
In this question we have calculate the 9 + 9 by making the 10. We have two number make one number to ten and add the remaining number.
The correct answer is: 18
Here we have to calculate the 9 + 9 by making ten.
Firstly , we have two number ,
One have 9 and second is 9,
We have to find [9] +[ 9]
Now we can write ,
9 + 1 + 8 ( we can write 1 + 8 = 9, Move 1 counter to make a ten.)
10 + 8 ( we know 9 + 1 =10)
= 18
The correct answer is 18( option (a)).
In this question ,we have to make the first number to 10. Make the first number to 10 and add remaining number. It make your addition easy.
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