# Kellen earned 133 coins in Fruit Ninja yesterday and 278 more today. How many coins has Kellen earned in the last two days?

##### 1 Answer

Sometimes it is easier to add up numbers if they are in column form.

#### Explanation:

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Working from right hand side to left hand side

Note the 10 carried to the tens column as 1 of 10

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Adding the middle column we now have

But as this is the tens column so we have 1 of 10 and 1 of 100.

This time we write:

Note the 1 of 100's is carried over into the 100's column

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Adding the LHS column we now have

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So