More or Less Grade 4/5

First, shuffle the dominos in the middle and take 3 of the dominos each. 

Decide if you are looking for the biggest number or the smallest number.

Next, students place the first domino in front of the decimal point to represent a number with tens and ones (for example, 4 and 2 would be 42). The other domino goes behind the decimal to make a tenth and a hundredth. 

Use a place value mat if needed. 

Students compare their numbers and decide who is the winner. 

Keep a tally chart to find the winner after 5 rounds.

First, students place all dominoes face down. Each student flips a domino and multiplies the two sides together using the middle of the 2 sides as a decimal point. 

Then he/she writes down the total to keep a running total. Players continue to flip dominoes at the same time and each player multiplies the domino’s sides and adds its total to the former totals. 

The first person to reach 10 wins!

First, students place dominoes face down. Each student flips over one domino and places it down vertically (like a fraction) with the smaller number on top (the numerator).

 If the domino has the same number on the top as on the bottom (for example, four fours), the student automatically wins since the fraction equals one and it’s somewhat of an unusual domino. If the domino is blank on one side (which means zero), the student automatically loses that round since zero of a fraction is always zero. For regular dominoes, students need to compare domino fractions to determine which is larger and which is smaller. 

This comparing of fractions may be done mentally in some cases, or it can be written down. Discuss your answer with your partner.

Need a challenge? Multiply the fractions.