Add Numbers up to 90
STEP 1
- Instructors display the table below.
- Children copy problems from the table, solve the problems, and write the answers.
- items can be used to add the numbers in each column.
STEP 2
- Instructors and children review the solutions.
- Children correct any mistakes.
- Special drill should be given to those combinations by which the addition of the digit carries the total into the ten next higher than the number to which the digit is added.
- Continue until children master all equations.
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