Know Your Decimals Subtracting Money – Abracadabra Antiques are task cards designed to provide students with opportunities to improve their skills in subtracting decimals.

The context is related to a fictional store called Abracadabra Antiques which sells antiques. Students are required to subtract the cost price of an item from the price from which it was sold, thus working out the profit for the day.

Students will subtract both double and triple-digit numbers using 2 decimal places (appropriate for money). At times, a product has been sold more than once in a day so students may find themselves drawing on a variety of mental computation skills such as doubling, halving, compensating (rounding then adjusting) and multiplying by 10 by adding an extra zero.

Although it is possible for high (super high?) achieving students to mentally calculate the totals, it is more than appropriate for them to use the back of their answer sheet to make any calculations necessary.

While these cards are commonly used as task cards, they have also been used successfully in math centers or rotations.

This resources contains:

• 27 cards (24 task cards, 1 title card & two cards displaying the selling and cost prices for the products in the Abracadabra Antiques store)
• Student recording sheet
• Answer key
• Complete PDF and individual PNG files of the cards also included (very helpful for demonstrating an example or working through a card as a whole class)

Instructions:

• Print, laminate and cut the individual cards. (p. 2-9)
• Print student sheet (p. 10) and provide each student with a worksheet
• Distribute the cards around the room (or allocate your desired number of cards for use in a math rotation or center). Students may start at any number and work their way through in any order, but it is helpful to remind students to write the answer in the same numbered answer box i.e., if they are on card number 12, they should write their answer in answer box number 12
• Check answers

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Please feel free to check out some of my similar styled resources:

Know Your Decimals Task Cards - Adding Money for Abracadabra Antiques

Know Your Decimals Task Cards - Add and Subtract Money for Abracadabra Antiques

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Mental Computation Task Cards - Concept Switch Level 2

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Know Your Decimals Task Cards - Adding Money for Abracadabra Antiques

Happy learning!