
1. Addition
Ages 4 to 11
At ages 4-5, children count the dots under each number and add (sums up to 5). At 5-6, sums up to 10; at 6-7, sums up to 20, with a few equations where a missing number must be found.
From ages 7-8, the additions are written in columns with small boxes for the carried digits: 2-digit numbers, then 3 and 4 digits, and at ages 10-11 some additions of three numbers.
















