Subtract within 20

Preview of mental math problems packet

“Mental Gymnastics” Mental Math Problems

Start math class with Mental Gymnastics! This activity can review math facts while promoting a quiet learning environment. Meant for grades 2 to 5, the download features 72 mental math problems and three skill levels. 

Subtraction Word Problems: Subtract within 20, No Remainder (1)

Free math worksheet! This download features five realistic word problems about subtraction.

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