Step-by-step Maths Level 2: Counting back to take away

Method. Start at the first number and count back the second number.

1. Start at 12. It is the number we begin with.
   12
2. Count back 6. Say each number as you go back.
   12 - 6 = 6
3. Write the answer. This is how many are left.
   6

Check. Count on 6 from 6 to check: you reach 12.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 9. It is the number we begin with.
   9
2. Count back 6. Say each number as you go back.
   9 - 6 = 3
3. Write the answer. This is how many are left.
   3

Check. Count on 6 from 3 to check: you reach 9.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 15. It is the number we begin with.
   15
2. Count back 9. Say each number as you go back.
   15 - 9 = 6
3. Write the answer. This is how many are left.
   6

Check. Count on 9 from 6 to check: you reach 15.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 9. It is the number we begin with.
   9
2. Count back 9. Say each number as you go back.
   9 - 9 = 0
3. Write the answer. This is how many are left.
   0

Check. Count on 9 from 0 to check: you reach 9.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 8. It is the number we begin with.
   8
2. Count back 1. Say each number as you go back.
   8 - 1 = 7
3. Write the answer. This is how many are left.
   7

Check. Count on 1 from 7 to check: you reach 8.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 5. It is the number we begin with.
   5
2. Count back 5. Say each number as you go back.
   5 - 5 = 0
3. Write the answer. This is how many are left.
   0

Check. Count on 5 from 0 to check: you reach 5.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 11. It is the number we begin with.
   11
2. Count back 8. Say each number as you go back.
   11 - 8 = 3
3. Write the answer. This is how many are left.
   3

Check. Count on 8 from 3 to check: you reach 11.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 11. It is the number we begin with.
   11
2. Count back 4. Say each number as you go back.
   11 - 4 = 7
3. Write the answer. This is how many are left.
   7

Check. Count on 4 from 7 to check: you reach 11.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 13. It is the number we begin with.
   13
2. Count back 8. Say each number as you go back.
   13 - 8 = 5
3. Write the answer. This is how many are left.
   5

Check. Count on 8 from 5 to check: you reach 13.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 6. It is the number we begin with.
   6
2. Count back 5. Say each number as you go back.
   6 - 5 = 1
3. Write the answer. This is how many are left.
   1

Check. Count on 5 from 1 to check: you reach 6.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 17. It is the number we begin with.
   17
2. Count back 2. Say each number as you go back.
   17 - 2 = 15
3. Write the answer. This is how many are left.
   15

Check. Count on 2 from 15 to check: you reach 17.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 17. It is the number we begin with.
   17
2. Count back 5. Say each number as you go back.
   17 - 5 = 12
3. Write the answer. This is how many are left.
   12

Check. Count on 5 from 12 to check: you reach 17.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 13. It is the number we begin with.
   13
2. Count back 1. Say each number as you go back.
   13 - 1 = 12
3. Write the answer. This is how many are left.
   12

Check. Count on 1 from 12 to check: you reach 13.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 9. It is the number we begin with.
   9
2. Count back 4. Say each number as you go back.
   9 - 4 = 5
3. Write the answer. This is how many are left.
   5

Check. Count on 4 from 5 to check: you reach 9.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 9. It is the number we begin with.
   9
2. Count back 3. Say each number as you go back.
   9 - 3 = 6
3. Write the answer. This is how many are left.
   6

Check. Count on 3 from 6 to check: you reach 9.

Watch out. Count back from the first number. Do not count the starting number again.

Method. Start at the first number and count back the second number.

1. Start at 20. It is the number we begin with.
   20
2. Count back 3. Say each number as you go back.
   20 - 3 = 17
3. Write the answer. This is how many are left.
   17

Check. Count on 3 from 17 to check: you reach 20.

Watch out. Count back from the first number. Do not count the starting number again.