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Chant in 10s from 150 to 270.
Now, chant in 50s from 150 to 550.
Addition and subtraction
Focus: Subtract 3-digit by 2-digit numbers-crossing 10 or 100
Watch: https://vimeo.com/465481885
Complete: Worksheet- Subtract 3-digit by 2-digit numbers-crossing 10 or 100