It's great for my boys as it forces them to do mental math quickly. My 7 year old is getting faster and the 10 year old has most every multiple memorized and is fast at score addition.
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It's great for my boys as it forces them to do mental math quickly. My 7 year old is getting faster and the 10 year old has most every multiple memorized and is fast at score addition.
That's great! It's nice to teach it to the learners too. @flemingfarm