How to learn to calculate in your head and without mistakes? It is so frustrating when teachers lower grades for inattentiveness. Speed counting exercises will help the child practice multiplication and division skills. Just 16 days of regular classes for...
10-15 minutes, and you will notice the first results and good grades in the diary.
How to learn to calculate in your head and without mistakes? It is so frustrating when teachers lower grades for inattentiveness. Speed counting exercises will help the child practice multiplication and division skills. Just 16 days of regular classes for 10-15 minutes, and you will notice the first results and good grades in the diary.
In stock
€ 2.19
Will be delivered to United States on 11 March (We):
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€ 38.94
In stock
€ 2.19
Will be delivered to United States on 11 March (We):
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The product is delivered directly from the publisher. The order processing time is up to 14 days, you will receive the exact delivery date from the operator after the order confirmation.