Mathematics · Grades 4

Folding Fan Gap Fill

Find an unknown angle by adding known parts and filling the rest of a whole angle.

About 12 minutesAdvanced levelInteractive practice
Start Folding Fan Gap Fill

What children practice

  • Angle Wedge Hangar: Solve addition and subtraction problems to find unknown angles when an angle is split into non-overlapping parts.

How to use this activity

Invite your child to try the challenge independently first. Encourage them to explain their thinking, use the immediate feedback, and try again when an answer does not work. Short, repeated practice helps build confidence.

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