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.’