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Subtraction exercises
Use the tally marks to do the subtraction
HOW TO USE
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In this exercise, you need to use tally marks to solve the given subtraction problem.
▶ Look at the list of tally marks.
▶ See the first number in the above question. That's how many hand signs we need.
▶ Click on the tally marks to get the right amount.
▶ The tally marks will appear in the middle of the screen.
▶ Click on the tally marks in the middle as many times as the second number says.
▶ Count the tally marks.
▶ Use the numberpad or keyboard to show how many tally marks you counted.
▶ Click the check button to see if your answer is right or wrong.
▶ If you want to try again, click the reset button.
Have fun practicing subtraction with tally marks!