### Purpose:

You can help your child to count in decimal number sequences.

### What you need:

Pen and paper

### What to do:

Write a decimal number with 2 decimal places. For example 23.21

Name the decimal one tenth more than that number. Write the next five decimal numbers in order.

For example: 23.21 23.31 23.41 23.51 23.61 23.71

Ask your child to write a decimal number with 2 decimal places. For example 35.67

Take turns to name the decimal one hundredth __more__ than that number. For example: 35.68

Have 3 or 4 turns each.

Ask your child to write another decimal number with 2 decimal places. For example: 45.32

Take turns to name the decimal one hundredth __less__ than that number. For example 45.31

Have 3 or 4 turns each.

### What to expect your child to do:

To be able to count forwards and backwards in decimal number sequences.

### Variations:

Extend the activity by asking your child to write a decimal with 3 decimal places and count forwards and backwards in hundredths or thousandths.

### He Kupu Māori:

tenths | hautekau |

hundredths | haurau |

decimal places | mati ā-ira |

decimal number | tau ā-ira |

thousandths | haumano |

**He Whakawhitinga Kōrero:**

- Tuhia he tau kia rua ōna mati ā-ira.
*(Write a number with two decimal places.)* - He aha te tau kotahi haurau te rahinga ake?
*(What is the number that is bigger by one hundredth?)* - He aha te tau kotahi hautekau te itinga iho?
*(What is the number that is one tenth smaller?)* - Tatauria whakamua ngā haurau.
*(Count forwards in hundredths.)* - Tatauria whakamuri ngā haumano.
*(Count backwards in thousandths.)*

### Download a file of this activity:

PDF (253KB)