🔢 Numeracy and Mathematics
Second Level
Primary 5
Primary 6
Primary 7
Decimals
Numbers with a decimal point — tenths and hundredths.
A decimal point separates whole numbers from parts. 0.5 means half. 1.25 means 1 and a quarter.
Decimals extend place value below the ones place. The first digit after the point is tenths, the next is hundredths. 0.25 = 2 tenths and 5 hundredths.
Decimal notation is base-10 place value extended to negative powers: 0.25 = 2×10⁻¹ + 5×10⁻². Decimals and fractions are two representations of the same rational values.
🎨 Visual Guide
✏️ Try This
What is 0.3 + 0.4?
Answer: 0.7