Question Video: Finding the Difference by Counting Back in Tens Mathematics

Video Transcript

Count back in tens to find the difference. 751 take away 40 equals what?

The question tells us that we need to count back in tens. So, we need to start at 751 and count back in tens. We need to count back four tens because four tens are 40, and we’re taking away 40. So, let’s start at 751 and count back in tens, 751, 741, 731, 721, 711. We started at 751. We counted back in tens four times, because four times are 40. And we landed on number 711. 751 take away 40 equals 711.