[Addition and subtraction of fractions]

(Proper fraction) + (Proper fraction) where the sum of the days of the week is less than 1 and the denominator is the same
1 week 2 days sum is greater than 1 and the denominator is the same (proper fraction) + (proper fraction) (1)
1 week 3 days sum greater than 1 and (proper fraction) + (proper fraction) with the same denominator (2)
1 week 4 days The sum of the proper fraction parts is less than 1 and the denominators are the same (mixed fraction) + (mixed fraction) (1)
1 week 5 days The sum of the fraction parts is less than 1 and the denominators are the same (mixed fraction) + (mixed fraction) (2)
2 weeks 1 day (mixed number) + (mixed number) (1) where the sum of the proper fraction parts is greater than 1 and the denominators are the same
2 weeks 2 days The sum of the proper fraction parts is greater than 1 and the denominators are the same (mixed fraction) + (mixed fraction) (2)
2 weeks 3 days (proper fraction) with the same denominator - (proper fraction)
2 weeks 4 days 1-(proper fraction)
2 weeks and 5 days, you can subtract the parts of proper fractions and have the same denominator (mixed fraction)-(mixed fraction)(1)
3 weeks 1 day You can subtract the parts of proper fractions and have the same denominator (mixed fraction)-(mixed fraction)(2)
3 weeks 2 days (natural number) - (fraction)
3 weeks 3 days Proper fraction parts cannot be subtracted and have the same denominator (mismatched fraction)-(mismatched fraction)(1)
3 weeks 4 days Proper fractions cannot be subtracted and have the same denominator (mixed fraction)-(mixed fraction)(2)
3 weeks and 5 days final calculation

[Addition and subtraction of decimals]

Learn the two-digit number for 4 weeks and 1 day
Learn three-digit numbers in 4 weeks and 2 days
Relationship between prime numbers for 4 weeks and 3 days
4 weeks and 4 days, small size comparison
Addition of single-digit decimal numbers without carry-over for 4 weeks and 5 days
Addition of single-digit decimal numbers with carry-over every 5 weeks (1)
Addition of single-digit decimal numbers with carry-over (2)
Addition of two-digit decimal numbers without carry over 5 weeks and 3 days
Addition of two-digit decimal numbers with carry-over (1)
Addition of two-digit decimal numbers with carry-over (2)
Addition of decimals with different digits in 6 weeks and 1 day
Subtraction of single-digit decimals without borrowing in 6 weeks and 2 days
Subtraction of single-digit decimals with reversal (1)
Subtraction of single-digit decimals with refining (2)
Subtraction of two-digit decimal numbers without borrowing in 6 weeks and 5 days
Subtraction of two-digit decimal numbers with 7-week and 1-day reversals (1)
Subtraction of two-digit decimal numbers with borrowing (2)
Subtraction of decimals with different digits in 7 weeks and 3 days
7 weeks and 4 days final calculation

[triangle, square]

7 weeks and 5 days isosceles triangle
8 weeks and 1 day equilateral triangle
8 weeks and 2 days vertical and perpendicular
8 weeks and 3 days parallelogram
8 weeks and 4 days diamond
8 weeks and 5 days final calculation

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