Multiples of 10

This educational activity is designed to help learners understand and practice rounding numbers to the nearest multiple of ten, as well as performing basic arithmetic operations with these multiples. To prepare for the game, participants require a 0-9 dice and a list of all multiples of ten ranging from 0 to 100. This list should include the numbers 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100, which represent the foundational multiples of ten that the game is based around.

The game is played by taking turns to roll the dice twice to generate two two-digit numbers. Each player then rounds these numbers to the nearest ten and decides to either add or subtract them. The objective is to cross off the resulting number from the provided list of multiples. However, not all outcomes will be present on the list, as some totals may exceed 100. For example, if a player rolls a 34 and an 85, these are rounded to 30 and 90, respectively. Adding them results in 120, which is not on the list, so the player should find the difference, which is 60, and cross that off their list. The winner is the first player to cross off all the multiples or the player with the most crossed off after three consecutive missed turns. The game also encourages discussions about the relationship between single-digit addition and its corresponding multiples of ten, enhancing the understanding of place value and number properties.