Mental math
Advanced · 10 levels, 8 problems each.
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- 01 Advanced
Warm-up, all five to fifty
8 problems · 2 min - 02 Advanced
Doubles to fifty
8 problems · 2 min - 03 Advanced
Near doubles to ninety-nine
8 problems · 2 min - 04 Advanced
Compensating, two digits
8 problems · 2 min - 05 Advanced
Landing on a ten, bigger numbers
8 problems · 2 min - 06 Advanced
Four strategies, bigger
8 problems · 2 min - 07 Advanced
Missing number
8 problems · 2 min - 08 Advanced
Doubles to a hundred and fifty
8 problems · 3 min - 09 Advanced
All five, three digits
8 problems · 3 min - 10 Advanced
Everything review
8 problems · 3 min