Subtract 1 from 11 to 20
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HOW TO USE
- Learn to subtract 1 from the numbers 11 to 20 and remember the answers.
- ▶ Step 1: Click the 'Table' button to see the subtraction table.
- ▶ Remember the answers.
- ▶ Step 2: Click the 'Test' button and fill in the answers in the boxes.
- ▶ Use the number pad to enter your answers.
- ▶ Step 3: Click the 'Tricky' button for mixed-up questions.
- ▶ Fill in the boxes with the correct answers.
- ▶ Press New Question button, if you want to try again.
- Have fun learning subtraction and remembering the subtraction table!