Was filling in blank boxes with dates to make a calendar and realised I never EVER fill in the dates in chronological order. And it happens every year. Cause it's too boring to take.

Method:

1) fill in first and last dates of the month

2) fill in the date for first monday of the month

3) fill boxes in vertically downwards by adding 7 to that first date etc

4) fill in 2 horizontal boxes next to the 4/5 dates you've just filled in

5) leave one whole row of vertical boxes blank

6) find the last date of the month, fill up vertically by subtracting 7

7) fill in the boxes left and right of the new row you've just created.

8) fill in any remaining boxes.

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One of the instances where maths was fun.
super simple maths for 4 year olds.