Step-by-step Maths Level 2: Counting on from any number
Part of the Step-by-step Maths Level 2 counting to 100 chapter. Chapter overview · whole chapter on one page
Counting on from any number
You do not have to start at zero. Start at the number you are given.
Count on to go up. Count back to go down. The number line helps you to see the jumps.
Key ideas
- Start at the number you are given.
- Count on to go up, count back to go down.
- Say each new number as you go.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.46
- Count on by 7. Say each new number as we go.46 + 7 = 53
- Write the answer. This is the last number we said.53
Check. Count back 7 from 53 to check. You arrive at 46.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.72
- Count back by 5. Say each number we pass.72 - 5 = 67
- Write the answer. This is the last number we said.67
Check. Count on 5 from 67 to check. You arrive at 72.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.38
- Count on by 9. Say each new number as we go.38 + 9 = 47
- Write the answer. This is the last number we said.47
Check. Count back 9 from 47 to check. You arrive at 38.
Watch out. Count on from the number you start with, do not start again from zero.
Watch out
Watch out. When you count on 7 from 46, you do not start again at 1. Begin at 46.
Exam tip
Grown-up tip. Use a number line or a hundred square. Ask the child to jump on the number line with a finger.
Exercise 1E Practice: counting on and back
Non-calculatorMethod. Start at the number and count back in steps.
- Start at the first number. It is where we begin.66
- Count back by 4. Say each number we pass.66 - 4 = 62
- Write the answer. This is the last number we said.62
Check. Count on 4 from 62 to check. You arrive at 66.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.88
- Count on by 6. Say each new number as we go.88 + 6 = 94
- Write the answer. This is the last number we said.94
Check. Count back 6 from 94 to check. You arrive at 88.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.52
- Count back by 6. Say each number we pass.52 - 6 = 46
- Write the answer. This is the last number we said.46
Check. Count on 6 from 46 to check. You arrive at 52.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.42
- Count back by 7. Say each number we pass.42 - 7 = 35
- Write the answer. This is the last number we said.35
Check. Count on 7 from 35 to check. You arrive at 42.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.40
- Count on by 6. Say each new number as we go.40 + 6 = 46
- Write the answer. This is the last number we said.46
Check. Count back 6 from 46 to check. You arrive at 40.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.34
- Count on by 2. Say each new number as we go.34 + 2 = 36
- Write the answer. This is the last number we said.36
Check. Count back 2 from 36 to check. You arrive at 34.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.73
- Count back by 7. Say each number we pass.73 - 7 = 66
- Write the answer. This is the last number we said.66
Check. Count on 7 from 66 to check. You arrive at 73.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.24
- Count back by 8. Say each number we pass.24 - 8 = 16
- Write the answer. This is the last number we said.16
Check. Count on 8 from 16 to check. You arrive at 24.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.84
- Count on by 4. Say each new number as we go.84 + 4 = 88
- Write the answer. This is the last number we said.88
Check. Count back 4 from 88 to check. You arrive at 84.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.17
- Count on by 7. Say each new number as we go.17 + 7 = 24
- Write the answer. This is the last number we said.24
Check. Count back 7 from 24 to check. You arrive at 17.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.24
- Count back by 5. Say each number we pass.24 - 5 = 19
- Write the answer. This is the last number we said.19
Check. Count on 5 from 19 to check. You arrive at 24.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.90
- Count on by 4. Say each new number as we go.90 + 4 = 94
- Write the answer. This is the last number we said.94
Check. Count back 4 from 94 to check. You arrive at 90.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.64
- Count on by 2. Say each new number as we go.64 + 2 = 66
- Write the answer. This is the last number we said.66
Check. Count back 2 from 66 to check. You arrive at 64.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.11
- Count on by 3. Say each new number as we go.11 + 3 = 14
- Write the answer. This is the last number we said.14
Check. Count back 3 from 14 to check. You arrive at 11.
Watch out. Count on from the number you start with, do not start again from zero.
Method. Start at the number and count back in steps.
- Start at the first number. It is where we begin.15
- Count back by 8. Say each number we pass.15 - 8 = 7
- Write the answer. This is the last number we said.7
Check. Count on 8 from 7 to check. You arrive at 15.
Watch out. Count back from the number you start with. Do not count the starting number again.
Method. Start at the number and count on in steps.
- Start at the first number. It is where we begin.50
- Count on by 4. Say each new number as we go.50 + 4 = 54
- Write the answer. This is the last number we said.54
Check. Count back 4 from 54 to check. You arrive at 50.
Watch out. Count on from the number you start with, do not start again from zero.