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Grade 1 · Maths · Lessons
All the way to 120
1️⃣ones🔟tens💯1001️⃣2️⃣0️⃣120
Count to 120.
The big ideaCount along to 120, and write the number.

How it works

Counting goes on past 100. After 99 comes 100. Then 101, 102 and on to 120.

Look for the pattern. Each number is one more than the one before.

When you write a number, write the hundreds, the tens, then the ones.

969810010210410610811011211411611812099100120
Counting on past 100.

Example 1: Fill the gap

  1. 55, ?, 57, 58.
  2. Each number is one more than the one before.
  3. After 55 comes 56.

Example 2: Count past 100

  1. 99, 100, 101, 102.
  2. After 99 comes 100, then 101.
  3. A new hundred starts.

Example 3: Count to 120

  1. 117, 118, 119, ?
  2. One more than 119 is 120.
  3. 120 is one hundred twenty.

Words to know

hundred
Ten tens: 100.
next
The one that comes after.

Watch out

Try it

  1. What comes after 109?
  2. What comes before 100?
  3. Fill in: 114, 115, ?, 117
  4. How do you write one hundred five?
Answers: 1. 110 · 2. 99 · 3. 116 · 4. 105
For grown-upsCount to 120 on the stairs or on a hundred chart, and pick up where your child stops.
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