Printable English math number pyramid game for ages 10+. This Level 9 activity includes four 4-row calculation pyramids built around the rule that each brick equals the sum of the two bricks directly below it. Skill focus: Positive and negative integers. The polished 3-page PDF includes a colorful cover with Lumi the cartoon fox, a full worksheet page, and a complete answer key. Great for math centers, classrooms, homeschool, early finishers, tutoring, travel, logic practice, and number fluency. Difficulty: Hard. US Letter size; print at 100%.

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