Year 6 Arithmetic (SATs): Times tables to 12 × 12
Part of the Year 6 Arithmetic (SATs) mental arithmetic chapter. Chapter overview · whole chapter on one page
Times tables to 12 × 12
Rule
Learn the times tables to 12 × 12, then use them to work out others. For 12 × 9, use 10 × 9 = 90 and 2 × 9 = 18, which gives 108.
Multiplication can be done in either order: 9 × 12 = 12 × 9.
Key ideas
- Know the times tables to 12 × 12 by heart.
- Split a bigger number to multiply it in parts.
- Swap the numbers: 9 × 12 is the same as 12 × 9.
Method. Split 12 into 10 and 2, then multiply each part by 9.
- Split the bigger number into 10 and the rest. 12 is 10 + 2.12 = 10 + 2
- Multiply each part. 10 × 9 = 90 and 2 × 9 = 18.90 + 18
- Add the parts. Add the two products.90 + 18 = 108
- Write the answer. 108
Check. 9 × 12 = 12 × 9. ✓
Watch out. Do not use 12 × 9 = 90 + 9: the 12 splits into 10 and 2, not 10 and 9.
Method. Use a known fact from the times table.
- Use the known fact. 7 × 8 is in the times table.7 × 8 = 56
- Check by swapping the numbers. 8 × 7 gives the same answer.8 × 7 = 56
- Write the answer. 56
Check. 8 × 7 = 56. ✓
Method. Split 12 into 10 and 2, or use a known fact.
- Use the known fact. 6 × 12 is in the times table.6 × 12 = 72
- Check by swapping the numbers. 12 × 6 gives the same answer.12 × 6 = 72
- Write the answer. 72
Check. 12 × 6 = 6 × 12. ✓
Exercise 7B Practice: times tables to 12 × 12
Non-calculatorMethod. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 7 × 8 is in the times table.7 × 8 = 56
- Check by swapping the numbers. 8 × 7 gives the same answer.8 × 7 = 56
- Write the answer. 56
Check. 8 × 7 = 56 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 6 × 9 is in the times table.6 × 9 = 54
- Check by swapping the numbers. 9 × 6 gives the same answer.9 × 6 = 54
- Write the answer. 54
Check. 9 × 6 = 54 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Split the bigger number into 10 and the rest. 12 is 10 + 2.12 = 10 + 2
- Multiply each part. 10 × 11 = 110 and 2 × 11 = 22.110 + 22
- Add the parts. Add the two products.110 + 22 = 132
- Write the answer. 132
Check. 11 × 12 = 132 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 9 × 7 is in the times table.9 × 7 = 63
- Check by swapping the numbers. 7 × 9 gives the same answer.7 × 9 = 63
- Write the answer. 63
Check. 7 × 9 = 63 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 8 × 8 is in the times table.8 × 8 = 64
- Check by swapping the numbers. 8 × 8 gives the same answer.8 × 8 = 64
- Write the answer. 64
Check. 8 × 8 = 64 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 4 × 12 is in the times table.4 × 12 = 48
- Check by swapping the numbers. 12 × 4 gives the same answer.12 × 4 = 48
- Write the answer. 48
Check. 12 × 4 = 48 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 3 × 11 is in the times table.3 × 11 = 33
- Check by swapping the numbers. 11 × 3 gives the same answer.11 × 3 = 33
- Write the answer. 33
Check. 11 × 3 = 33 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 5 × 9 is in the times table.5 × 9 = 45
- Check by swapping the numbers. 9 × 5 gives the same answer.9 × 5 = 45
- Write the answer. 45
Check. 9 × 5 = 45 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Split the bigger number into 10 and the rest. 12 is 10 + 2.12 = 10 + 2
- Multiply each part. 10 × 12 = 120 and 2 × 12 = 24.120 + 24
- Add the parts. Add the two products.120 + 24 = 144
- Write the answer. 144
Check. 12 × 12 = 144 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 6 × 7 is in the times table.6 × 7 = 42
- Check by swapping the numbers. 7 × 6 gives the same answer.7 × 6 = 42
- Write the answer. 42
Check. 7 × 6 = 42 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Use the known fact. 8 × 9 is in the times table.8 × 9 = 72
- Check by swapping the numbers. 9 × 8 gives the same answer.9 × 8 = 72
- Write the answer. 72
Check. 9 × 8 = 72 as well. ✓
Method. Use a known fact, or split one number into 10 and the rest.
- Split the bigger number into 10 and the rest. 11 is 10 + 1.11 = 10 + 1
- Multiply each part. 10 × 6 = 60 and 1 × 6 = 6.60 + 6
- Add the parts. Add the two products.60 + 6 = 66
- Write the answer. 66
Check. 6 × 11 = 66 as well. ✓