Oliver is playing a game with his friends. Each player gets 7 pieces. In all, there are 70 pieces on the game board. Which number sentence can be used to find the number of people playing the game?

Let P be the number of people playing the game.

The total number of pieces is 7P.
Since the total number of pieces is 70, then 7P = 70.

To find the number of people playing the game, we need to know how many players there are in total. We know that each player gets 7 pieces, and there are 70 pieces in total.

So, we can use the number of pieces on the game board divided by the number of pieces each player gets to find the number of players.

The number sentence that represents this situation would be:

70 ÷ 7 = number of players.

To find the number of people playing the game, we need to divide the total number of pieces on the game board by the number of pieces each player gets.

Let's set up the number sentence:

Total number of pieces on the game board = 70
Number of pieces each player gets = 7

The number sentence can be written as:

70 ÷ 7 = Number of people playing the game

So, the number sentence that can be used to find the number of people playing the game is:

70 ÷ 7 = Number of people playing the game