Have child figure out how to cut a pizza, cake, pie, or sandwich for different numbers of people. Have child determine how much or how many of a grocery item is needed for the entire family, or how much is needed for a given recipe. Let child help with the shopping by checking and comparing prices, weights, and quantities. If available, allow your child to use the calculator on the shopping cart to keep track of how much money is being spent on groceries while you shop. Have child determine how much change you will receive once you've paid the clerk.
Older children can practice writing a check for the total amount of the grocery bill.
Have child look at the sales flyer and determine how much money you could save by buying the sale items. Have child help with the laundry by matching the socks, sorting the clothing into appropriate colors, discussing clothing size according to each family member. Have your child determine how much laundry soap to use. Playing Encourage child to play games that involve counting, finding patterns, using strategy, and solving patterns. Relate sports and the stock market to mathematics.