Ordering activity Quiz Real-world maths Understanding place value and how to order decimals is useful when comparing decimals. Height, length and mass often include decimal numbers.

Math Riddles with Answers for Class 7 Students: Only the smartest students of 7th grade will be able to crack this challenging math riddle on decimals in 35 seconds.

We present an empirical study that investigated seventh-, ninth-, and eleventh-grade students' understanding of the infinity of numbers in an interval. The participants (n = 549) were asked how many ...

THE properties of circulating decimal, mentioned by Mr. R. Chartres and by Mr. E. P. Toy in NATURE (vol. xviii. pp. 291, 541) are particular cases of very general laws relating to the periods of ...