Subtraction within 10
Take a part away from the total — subtraction tells what is left
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Subtraction means taking a part away from the total. Some dots in a row are crossed out — those crossed out are exactly the part taken away. Look at the picture, work out how many are left, and tap the keypad to answer. Seeing subtraction as “taking away” builds number sense far better than memorizing facts.
Some dots in the row are crossed out: those are the ones taken away. Look at the picture, work out how many are left, and tap the number keypad. Correct answers make the equation glow.