🤝 Small Friend Formulas (5’s Complement)
🏆 Abacus Junior • Level 1 • Single Digit Foundations
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Questions:
10
15
20
50
100
Operation:
Addition only (SF formula)
Subtraction only (direct)
Mixed
Difficulty:
Easy (N = 1–2)
Moderate (N = 1–3)
Hard (N = 1–4)
Level:
Level 1 (1 row)
Level 2 (2 rows)
Level 3 (3 rows)
Level 4 (4 rows)
Level 5 (5 rows)
Mode:
Printable
Interactive
Formula hints:
Show formula
Hide formula
▶ Generate
🖶 Print
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