› Millimetres: Tenths of a Centimetre
› Guess, Measure and Colour
› Notes, Prices and Paise
› Tenths and Hundredths of a Sheet
› Metres, Centimetres and Foreign Money
› Bills and Temperatures with Decimals
› Fractions — part 1
› Fractions — part 2
› Fractions — part 4
› 3.1 The Need for Smaller Units: Sonu's Two Screws, and Measuring Them on the Scale
› 3.2 A Tenth Part: The Pencil of 3 4/10 Units, Reading Tenths, and Arranging Lengths in Increasing Order
› Adding Tenths: Sonu's Arm Worked Three Ways, and the Honeybee's Total Length
› Subtracting Tenths: Shylaja's Middle Finger, the Two Fish, and Six Sequences
› 3.3 A Hundredth Part: Folding the Paper, and Splitting Each Tenth into Ten
› Reading Hundredths Three Ways, Filling the Markings, and Finding the Longest and Shortest
› Adding 15 3/10 4/100 and 2 6/10 8/100 by Four Methods, Set Beside 483 + 268
› Subtracting with Regrouping, Set Beside 653 − 268, and Figure it Out (Page 13)
› 3.4 Decimal Place Value: Why We Always Split into Ten, and the Ladder of Place Values
› The Decimal System Named, and the 'How Big?' Math Talk
› Notation, Writing and Reading: Why 705, 70.5 and 7.05 Need a Decimal Point
› Reading Decimals Aloud, and the Place Value Table for Eight Quantities
› Rupee and Paise Conversion, and Prices in the 1970s
› 3.6 Locating and Comparing Decimals: Putting 1.4 on the Number Line
› There is Zero Dilemma! — Whether 0.2, 0.20 and 0.200 Are the Same
› Comparing 6.456 with 6.465 Digit by Digit
› 3.7 Addition and Subtraction of Decimals: Priya's Cloth, and 75.345 + 86.691
› Figure it Out (Page 30): Eight Sums and Eight Differences
› Fractions — part 1
› 4.1 A Quick Recap of Decimals: Jonali and Pallabi's Game, and the Spice Weights
› Figure it Out (Pages 33–34): Questions 1 to 8 — Fractions to Decimals, Number Lines and Word Problems
› Multiplying and Dividing Decimals by 10, 100 and 1000
› Converting Between Fractions and Decimals
› Word Problems on Money, Length and Weight with Decimals