MathematicsBeginner

Decomposing and composing numbers

Splitting and joining underlie + and −

Estimated time · 7 min 9 Content blocks

Core concepts

Formulas

5=1+4=2+3=3+2=4+15 = 1+4 = 2+3 = 3+2 = 4+1

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Exercises

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Prerequisites

Numbers 1–5 and comparing them7 min
Practice set
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3Single choice

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