Subtraction Action!

This week in First Grade we began our study of subtraction.  The girls have been busy solving problems about swimming fish, delicious cookies, and lost teeth.  Many of the strategies we used for solving addition problems can also be used for subtraction. The girls are comfortable drawing pictures, using manipulatives, and counting backwards on a number line to solve unknown problems.  They are also beginning to notice the relationship between addition and subtraction.  For example, if we know 4+4=8 then we can solve 8-4= __.  Check out your daughter's Thursday Folder to see some of her subtraction work.

Lost Tooth Subtraction

If there were 12 fish and 6 swam away, how many fish are left?

Subtraction with Dice

Cookies anyone?