1. https://www.ixl.com/math/grade-3/interpret-line-plots
2. https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-line-plots/e/solving-problems-with-line-plots-1
1.https://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/tcc-5th-mult-frac-and-whole-word-prob/e/multiplying-fractions-and-whole-numbers-word-problems
2. https://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/tcc-5th-mult-frac-and-whole-word-prob/e/interpret-multiplying-fraction-and-whole-number-word-problems