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Step-by-step practice: Maths · Level 2Chapter 1 · Counting to 100
Step-by-step Maths Level 2 · Counting to 100 · Lesson 1.1

Step-by-step Maths Level 2: Counting forwards to 100

Part of the Step-by-step Maths Level 2 counting to 100 chapter. Chapter overview · whole chapter on one page

1.1

Counting forwards to 100

Level 2
Count forwards from 0 to 100, Say the number after any number up to 100

We count forwards one number at a time. Each number is one more than the number before.

To find the number after, add one. Go to the next number on the count.

Key ideas

  • Counting forwards means each number is one more.
  • The number after 39 is 40.
  • Count to 100 and stop there.
Worked example 1.1.1
What number comes straight after 47?

Method. The number after is the next number when we count on one.

  1. Start at the number. We begin where we are.
    47
  2. Count on one. The next number is one more.
    47 + 1 = 48
  3. Write the answer.
    48

Check. Count back one from 48: you reach 47. It works.

Watch out. The number after is one bigger, not the same number again.

Worked example 1.1.2
What number comes straight after 69?

Method. The number after is the next number when we count on one.

  1. Start at the number. We begin where we are.
    69
  2. Count on one. The next number is one more.
    69 + 1 = 70
  3. Write the answer.
    70

Check. Count back one from 70: you reach 69. It works.

Watch out. The number after is one bigger, not the same number again.

Worked example 1.1.3
What number comes straight after 99?

Method. The number after is the next number when we count on one.

  1. Start at the number. We begin where we are.
    99
  2. Count on one. The next number is one more.
    99 + 1 = 100
  3. Write the answer.
    100

Check. Count back one from 100: you reach 99. It works.

Watch out. The number after is one bigger, not the same number again.

Watch out

Watch out. Thirty and forty are not the same. After 39 comes 40, not 30.

Exam tip

Grown-up tip. Count forwards from 0 to 100 in tens, then ones. Aim for a count without stopping. Ask: “What comes after 59?”

Exercise 1A  Practice: the number after

Non-calculator
1
FWhat number comes straight after 94?
2
FWhat number comes straight after 41?
3
FWhat number comes straight after 38?
4
FWhat number comes straight after 72?
5
FWhat number comes straight after 43?
6
FWhat number comes straight after 51?
7
FWhat number comes straight after 2?
8
FWhat number comes straight after 58?
9
FWhat number comes straight after 57?
10
FWhat number comes straight after 93?
11
FWhat number comes straight after 32?
12
FWhat number comes straight after 5?
13
FWhat number comes straight after 0?
14
FWhat number comes straight after 4?
15
FWhat number comes straight after 77?
16
RSam says the number after 39 is 30. Is he right? Explain how you know.

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