Question Video: Decomposing Teen Numbers into Tens and Ones Mathematics • Second Year of Primary School

Video Transcript

Michael has shown that 14 is one ten and four ones. To find one less, he can take away a one. Fill in the blank: One less than 14 is one ten and what ones. Fill in the blank: One less than 14 is what.

In this question, we’re told that Michael has made the number 14. He made the number 14 using one ten and four ones. He’s trying to find one less than 14, and we’re told he can do this by taking away a one. So let’s take away one of Michael’s four ones. One less than 14 is one ten and three ones. Now, let’s complete the second sentence. One less than 14 is what. If one ten and four ones is 14, then one ten and three ones is 13. Michael made the number 14 using one ten and four ones. We had to find one less, so we took away a one. Michael was left with one ten and three ones. One less than 14 is 13.