• Ms. Swantek Day 6 Math – Wednesday, March 25

     

    Overview: Strategies for Mental Math

    Estimated Time: Approximately 45 minutes

    Explanation:  

    You can use mental math strategies to add 2-digit numbers

     

    Quick things to know:

    1. When no regrouping is needed, separate the smaller number by place value. Subtract the tens, then subtract the ones.
    2. When regrouping IS required, subtract a “close” number and add the extra back (because you subtracted too many).
    3. You don’t always need paper and pencil if you use mental math strategies.

    Tasks:

    1. Complete the BLUE Math in Focus packet pages 3 and 4.

     

     Keep your work in a folder and you may turn it in when you come back to school.