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Add & subtract to 100: math practice, grades 2–3
Practise “Add & subtract to 100” online for free. Five right answers in a row make the tasks harder, two mistakes in a row make them easier. Right answers earn coins for games.
Example problems
These are only examples: the practice makes new tasks every time.
40 + 10 = ?
Answer
50
47 + 1 = ?
Answer
48
39 + 8 = ?
Answer
47
57 + 2 = ?
Answer
59
44 − 11 = ?
Answer
33
77 + 22 = ?
Answer
99