Custom arithmetic practice

Choose a short set of questions for the calculation you want to practice. No account is needed.

Choose one operation. Use addition, subtraction, multiplication, or integer division. Each set uses the operation you selected.

Choose your numbers. Set the minimum and maximum from 0 to 1000. Both numbers in each question use that range; the answer can be outside it. Subtraction can give a negative answer. Division uses a nonzero divisor and a whole-number answer. A division range of 0–0 cannot start.

With a range of 0–12, possible questions include 2 + 9 = 11, 3 − 8 = −5, 4 × 3 = 12, and 12 ÷ 3 = 4. These are examples, not a fixed question list.

Choose the size and pace. Set 1–100 questions. Enter 0 seconds for no timer, or 1–120 seconds for each question. The default is ten addition questions with the timer off. Defaults are examples, not recommended ability levels.

Answer and pause. Type a whole number and press Enter or Submit. Use a minus sign for a negative answer. A valid answer moves to the next question, even when incorrect. With the timer on, an expired question also moves on. Pause before time runs out to hold the current question and remaining time. A question whose timer has already expired can move on before the pause takes effect. Leaving the tab pauses the practice; choose Resume practice when you return.

Read the result. The previous-question area shows the last completed question and its correct answer. The end of the set shows correct, incorrect and timed-out counts, plus active practice time excluding pauses. These describe this set; they do not assess your ability. Practice again with these settings starts a new set. Change settings takes you back to the setup.

Review missed questions. At the end, open the optional review to see this set's incorrect and timed-out questions, their correct answers and your accepted whole-number answers. The review stays only in this open page. A new set, Change settings, reload, Delete device data or turning off usage sharing clears it. If you clear it during practice, that set will finish without a review; the next set can show one again.

Choose what stays on this device. Settings can be saved in this browser. Answers and question history are not saved. Usage sharing is optional and off by default; practice works either way. Delete device data clears saved settings, the usage choice and any return marker. Your current practice can continue. Read the privacy details for storage failures and other limits.