What is happening in this sequence: , 50, 40, 30, 20?

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Grades 1 and 2 - Math - Elementary School - Counting in Tens — practice the complete quiz, review flashcards, or try a random question.

Counting forward and back in tens is a really useful skill. It is one of the first kinds of number patterns children encounter and a good understanding will help with lots of other areas of development, including recognizing sequences, counting forward and back quickly, and ten times table recall.


What is happening in this sequence: <BR>, 50, 40, 30, 20?