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About
Math + Programming
Think Math!
Math Routines
- Mental Math
- Headline Stories
Math Library

About
Math + Programming
Think Math!
Math Routines
- Mental Math
- Headline Stories
Math Library

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time

Counting Backward for 30 Seconds or 60 seconds

Grade 2, Topic(s): counting and cardinality, time

Counting Backward from 60

Grade 2, Topic(s): counting and cardinality, time

This material is based upon work supported by the National Science Foundation under NSF Grant No. DRL-1934161 (Think Math+C), NSF Grant No. DRL-1741792 (Math+C), and NSF Grant No. ESI-0099093 (Think Math).

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

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