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🤝 Small Friend Formulas (5’s Complement)
🏆 Abacus Junior • Level 1 • Single Digit Foundations
Questions:
10
15
20
50
100
Numbers up to:
9
20
99
Operation:
Addition (+1 to +4)
Subtraction (-1 to -4)
Mixed
Show Formula:
Yes
No (challenge)
▶ Generate Paper
🖶 Print
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