← ArithmeticArithmetic 011 (generated) — Common factorArithmeticPracticeMediumYour answerEnter only the number. Use a point or comma for decimals.Check answerReveal solutionStuck? Show me one stepRelated exercisesSimilarArithmetic 043 — ZAP 2019, Exercise 5: Calculating cleverly (two parts)Arithmetic 025 (generated) — Make a hundredArithmetic 019 (generated) — Halve and doubleArithmetic 049 (generated) — Fractions of lengths and clever calculating