About Let's Addition "Nine Numbers3"
1st "Multiplication", 2nd "Division",
Next the 3rd brain training
calculation series is "Addition"!
Question . [15] = [?] + [?] + [?]
(Answering... 7+6+3=15)
(Answering... 2+4+9=15) etc,etc,
This is "Reverse Addition"
Let's Study! TimeAttack "Addition"!!
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Let's Addition "Nine Numbers3" version 1.2 on your
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Android package:
com.satochan3955.ninenumber3, download Let's Addition "Nine Numbers3".apk