Decimal Dunes

Levels 9–99 · decimals

Sandy dunes where every grain counts. Multiply, round, and add decimals to find the hidden treasure.

Study Before You Play

Brush up on these topics to sharpen your skills for this zone.

What Are Decimals?

Understand decimal notation, place values, and how decimals relate to fractions.

Adding & Subtracting Decimals

Learn to add and subtract decimal numbers by lining up the decimal point.

Multiplying Decimals

Learn to multiply decimals by whole numbers and other decimals.

Rounding Decimals

Round decimals to the nearest whole number, tenth, or hundredth.