Add with pictures - sums up to 5
Add with pictures - sums up to 10
Add with pictures - sums up to 20
Subtract with pictures - numbers up to 5
Subtract with pictures - numbers up to 10
Subtract with pictures - numbers up to 20
Comparing differences up to 30
Put numbers up to 30 in ascending order
Put numbers up to 30 in descending order
Complete the ascending sequence with numbers up to 30
Complete the descending sequence with numbers up to 30
Write the adjacent numbers up to 30
Problem. How many numbers are between two given numbers smaller than 30
Find two numbers whose sum is included between the following numbers
Find two numbers whose difference is included between the following numbers
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