Montessori · Mathematics

Subtraction Finger Charts

Subtraction finger charts use the same progressive memorization approach, leveraging known addition facts to build subtraction fluency.

Objectives

Materials

Instructions

1. Begin with Chart 1: all answers visible. 2. Find 12 - 5 by locating row and column. 3. Progress to Chart 2 (partial answers). 4. Use addition knowledge: 'I know 5 + 7 = 12, so 12 - 5 = 7.' 5. Chart 3: blank—recall all facts. 6. Track mastered facts.

Educator tip

Encourage the addition connection strategy: 'Think addition' is a powerful mental math technique.

Assessment

Child recalls subtraction facts with increasing speed and accuracy.

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