3-4 Column Addition

3-4 Column Addition

Multiple Choice

Is 42 closer to 40 or 50?

• 40

• 50

Multiple Choice

Is 56 closer to 50 or 60?

• 50

• 60

Multiple Choice

Is 210 closer to 200 or 300?

• 200

• 300

Multiple Choice

Is 998 closer to 900 or 1,000

• 900

• 1,000

Multiple Choice

Is 2,068 closer to 2,000 or 3,000?

• 2,000

• 3,000

Multiple Choice

Is 3,243 closer to 3,240 or 3,250?

• 3,240

• 3,250

How are partial-sums addition and column addition alike?

They both involve adding hundreds, tens, and ones.

They both end up with the same answer.

How are partial-sums and column addition different?

For partial sums, you add the values in each place and then add the partial sums to find the total. For column addition, you add the digits in each place and trade to larger places to find the total.