addition

What is the recommended method for adding numbers, as described in the passage 'Understanding Addition'?

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Rounding the numbers to the nearest tens or hundreds makes it simpler to estimate the sum to be around ___.

What is the recommended approach for adding multiple numbers?

• Start from the leftmost digit and work towards the right

• Start from the middle digit and work outwards

• Start from the rightmost digit and work towards the left

• Start from the center and work in a circular pattern

What is the purpose of estimating sums when dealing with large numbers?

• To make calculations easier

• To round numbers to the nearest tens or hundreds

• To avoid errors in calculations

• To simplify complex addition problems

What is carrying over in addition?

• When the sum of the digits in a column is greater than 9

• When the sum of the digits in a column is less than 9

• When the sum of the digits in a column is equal to 9

• When the sum of the digits in a column is not relevant