Question

Ruth bought 27 sugar candies, she gifted 9 of them to her younger brother. Now, she has sugar candies.

• A. $18$
• B. $12$
• C. $36$

Answer 1

The correct option is A $18$

Out of 27 sugarcandies, Ruth gifted 9 sugarcandies to her younger brother that means 9 sugarcandies are reduced from her collection of 27 sugarcandies.
The sugarcandies left with her are $27-9$

$\because 27=20+7$ here, 2 is two tens that is equal to one ten + 10 ones.

We can add 10 ones out of 2 tens in 7 ones of 27. In this way, we will have 17 ones in place of 7 ones and 1 ten in place of 2 tens of number 27.

Now, we can do subtraction as follows:

Here, $17\text{ones}-9\text{ones}=8\text{ones}$
This means ruth will have 18 candies left with her.