Teach children to add columns of numbers.
- Direct children to mentally add the columns below, speaking aloud the results only of each operation.
- Have children add columns from bottom to top for additional practice.
- Exercise #1: Add the columns aloud from top to bottom and bottom to top. For example, for the first problem top to bottom, students say ‘2, 3.’

STEP 2
- Exercise #2: Add the columns aloud from top to bottom and bottom to top. For example, for the first problem top to bottom, students say ‘9, 10.’

- Direct children to mentally add the columns below, speaking aloud the results only of each operation.
- Have children add columns from bottom to top for additional practice.
- Exercise #1: Add the columns aloud from top to bottom and bottom to top. For example, for the first problem top to bottom, students say ‘2, 3.’
- Exercise #2: Add the columns aloud from top to bottom and bottom to top. For example, for the first problem top to bottom, students say ‘9, 10.’
- Exercise #3: Add the columns aloud from top to bottom and bottom to top. For example, for the first problem top to bottom, students say ‘4, 6.’


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