Presentation (Powerpoint) File
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0.2 MB | 59 pages
This two-minute PowerPoint slideshow will help your students improve their mental addition and subtraction skills, within 20 (Common Core 2.OA.B.2). Use this as a warm-up at the beginning of a whole-class math lesson or right before recess. Place it on student-computers for extra practice or as a rotation during Math Centers. 24 different addition and subtraction problems. Each problem appears for five seconds and students say the answer aloud before the next slide appears with the answer. Quick. No prep. Just click and it runs itself (fully-automated). Take a look at the Preview to see some of the slides in this slideshow.
If you want more Addition and Subtraction PowerPoint slideshows, then here are the rest in this series: