We always review addition and subtraction at the beginning of the year (who doesn't, right?). I LOVE using Singapore Math strategies. They really help the students know WHY you take the 1 to the 10s column when you regroup! The book covers addition, subtraction, multiplication, and division strategies!
This year, I developed an addition and subtraction packet to help the students work their way through the Why Before How book addition strategies. This can be used alone or in conjunction with the How Before Why book. Using these math sheets have really helped my students master addition and subtraction (even across zeros!)!!
If you'd like a copy of my unit plan, click on the link below!
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