Here are four number cards. Two, three, four, and seven. Layla uses each card wants to make a four-digit number. She places a) the four in the tens column, b) the two such that it has a higher value than any of the other digits, and c) the remaining two digits such that the seven has the higher value. Write a digit in each box to show Layla’s number.
There’s a lot of information in this question. Let’s try to break it down. This is a really important piece of information: “Layla uses each card once.” And we know we’re making a four-digit number because there are four empty cards. First, Layla places the four in the tens column. This is the ones column, this is the tens column, the hundreds, and the thousands.
So we need to place the four in the tens column. We need to place the two card so that it has a higher value than any of the other digits. So we need to place the two in the thousands column. This is the highest value that the two digit could have. And with the remaining two digits, we need to place the seven so that it has the higher value. so we need to place the seven in the hundreds column.
We’ve used the two, the four, and the seven digit cards. All that’s left to do is place the three in the ones column. We’ve used each card once and we’ve made a four-digit number. Layla’s number is 2743.