# Rounding big numbers

### What you need:

A set of playing cards. (Ace = 1, Jack = 0)

### What to do:

Ask your child to take 4 cards and arrange them to make a number.

• How do you say that number?
• Can you round it to the nearest 10? 7230
• Can you round it to the nearest 100? 7200
• Can you round it to the nearest 1000? 7000

Using the same cards, ask your child to make a number close to a number you choose.

For example: for the cards

Make a number close to 3000    2731

Make a number close to 4000    3712

### What to expect your child to do:

To read the number correctly and to round it to the nearest 10, 100 and 1000.

### Variations:

• Use 5 cards to make numbers.
• Two players could make numbers and to see who can make the biggest number.

### He Kupu Māori:

 round (a number) whakaawhiwhi (-a) closest thousand te mano e pātata ana five digit number tau mati-rima

### He Whakawhitinga Kōrero:

• Tangohia ētahi kāri e rima, ka hanga ai i tētahi tau mati-rima. (Take five cards and make a five digit number.)
• Pānuihia mai tēnā tau? (Read that number.)
• Whakaawhiwhia ki te 10 e pātata ana. (Round it to the nearest ten.)
• Whakaawhiwhia ki te 100 e pātata ana. (Round it to the nearest hundred.)
• Whakaawhiwhia ki te 1000 e pātata ana. (Round it to the nearest thousand.)
• Hangaia tētahi tau e pātata ana ki te whā tekau mā ono mano. (Make a number close to 46000.)