Rounding to the nearest tenth

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Purpose:

To help your child to learn to round to the nearest tenth.

What you need:

  • Supermarket receipt
  • Pen and paper
  • Calculator

What to do:

Give your child a supermarket shopping receipt and look at the prices together.

Choose some items from the receipt for your child to round to the nearest tenth.

Item Receipt Rounding
Bananas $2.79 $2.80
Bread Rolls $5.58 $5.60
Kumara $3.81 $3.80
Taro $6.74 $6.70

Write down the prices rounded to the nearest ten cents

Use a calculator to add up receipt prices and then the rounded prices.

 

What to expect your child to do:

To round numbers to the nearest tenth.

Variation:

Try rounding up every items on a shopping receipt and then adding up the total using a calculator.

He Kupu Māori:

dollar tāra
cent hēneti
round (a number) whakaawhiwhi (-a)
rounded price utu whakaawhiwhi
receipt rīhiti
supermarket hokomaha

He Whakawhitinga Kōrero:

  • Anei te rīhiti mai i te hokomaha. Me tirotiro e tāua. (Here’s the receipt from the supermarket. Let’s have a look at it.)
  • Whakaawhiwhia ngā utu ki te tekau hēneti e pātata ana. (Round the prices to the closest 10 cents.)
  • Tuhia ngā utu whakaawhiwhi. (Write down the rounded prices.)
  • Tāpirihia ngā utu whakaawhiwhi. (Add up the rounded prices.)
  • Pēhea nei te pātata o te tapeke whakaawhiwhi ki te tapeke i utua. (How close is the rounded total to the total that was paid?)

Download a file of this activity:

PDF (254KB)