Round Up or Down in Nature!

A Mathematical Adventure Year 3 Mathematics Learning Rounding Rules

What is Rounding?

Making numbers simpler Finding the nearest 10 Like finding the closest tree in a forest Helps us estimate and count quickly

The Rounding Mountain

Numbers live on a special mountain The mountain has two sides One side goes UP One side goes DOWN

The Rounding Rule Forest

Animal Number Sorting

Look at the ones digit If it's 0, 1, 2, 3, or 4 - the animal goes DOWN the hill If it's 5, 6, 7, 8, or 9 - the animal climbs UP the mountain Let's practice with forest friends!

Rounding to the Nearest 10

Look at the ones digit only Example: 23 → look at the 3 3 is 0-4, so round DOWN 23 becomes 20

Another Example: 47

Look at the ones digit: 7 7 is in the 5-9 family So we round UP 47 becomes 50

Nature Quiz Time!

Where does 34 go? UP the mountain or DOWN the hill? Look at the ones digit! Discuss with your nature buddy!

Practice with Nature Numbers

{"left":"56 → Look at 6 → Round UP → 60\n31 → Look at 1 → Round DOWN → 30","right":"78 → Look at 8 → Round UP → 80\n42 → Look at 2 → Round DOWN → 40"}

Remember the Nature Rule!

0, 1, 2, 3, 4 → Go DOWN the hill 5, 6, 7, 8, 9 → Climb UP the mountain